QUICK RELEASE TURN LOCK FASTENERS 2600 2700 2800 MILSPEC SERIES C-SPEC FASTENERS | 26S51 27S3 QUICK RELEASE FASTENERS

FAA Approved for Aircraft Use Under TSO-C-148A

* Please note: Due to environmental regulations, steel parts are no longer cad plated. The plating used is bright zinc with yellow chromate. This gives the same appearance as cad with similar corrosion protection but is more environmentally friendly. Cad is available as an option, however minimum quantities may apply. Contact us for details if cad plating is required.

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CAMLOC® Z-SPEC DZUS® A-SPEC AIRLOC® AIRCRAFT FASTENERS FASTENER 1/4 TURN QUARTER TURN LOCK TURNLOCK AIRCRAFT

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2600, 2700 and 2800 Series C-Spec Fastener Basics

These series are perfect for light to medium duty applications. They are small enough to fit in limited mounting space and are light weight. All of these fasteners have a 600# ultimate tensile load capacity. All dimensions on this page are in inches unless otherwise specified. For metric conversion use this formula: Inches x 25.4 = mm. mm ÷ 25.4 = Inches.

The first thing to do when selecting any fastening system is to measure your Total Material Thickness (TMT). This is simply the thickness of the outer panel, the inside panel (or support structure), and any gaskets or gaps between panels. Add all of these together for your Total Material Thickness. When using a gasket between panels we recommend using 1/2” of the gaskets uncompressed thickness for these calculations.

When using the 2600, 2700 or 2800 series you will need 3 parts to make up the system. A stud, retainer, and receptacle. There are many options for each of these items as you will see below. Selecting the proper components for your application is simple using the data tables below. If you have any questions or need additional information, please Contact Us and we will be glad to help.

When designing a new application it is best to select components from the inside out.

1.) First, determine which Receptacle you want to use. See Table # 1. Consider any restrictions of mounting space or accessibility issues.

2.) Next, select the type of stud retainer you wish to use. Semi-rigid retainers are best for flat panels. Floating retainers usually work best on sliding or curved panels. See Table # 2.

3.) Then select the Stud Series and Head Style you wish to use. See Table # 3.

4.) Finally, select a Stud and Material from Table # 4, # 5, # 6 or # 7. In the far right column of each table is the stud's total length dimension. This can be used to easily identify an existing stud which requires replacement.

Once you have determined all of the above and selected the components to be used, be sure to reference Table # 8 to select the appropriate associated tooling. Some tools are not absolutely necessary but are very helpful in assuring proper hole spacing, hole diameters, and a proper installation.

* Please Note: We also offer Pre-Engineered fasteners sets that have all of the proper components packaged in simple set ups for 90% of most common applications.

Table # 1
2600, 2700 and 2800 Series Receptacles

Receptacles are available in several styles. There are many options but, the most important distinction to make is do you want to use fixed depth or adjustable depth receptacles as this will greatly affect the stud selection process. The original standard system used fixed depth receptacles and various stud lengths to fit different panel thicknesses. This configuration is limited to small variations in material thickness (0.030") from one stud length to the next. Later, MilSpec developed an adjustable depth receptacle which allows a much wider material thickness range for a given stud length than the original design (0.300"). This not only simplifies the installation but dramatically reduces inventory costs for the fabricator. For your convenience, we stock both fixed depth and adjustable depth styles.

If the materials to be fastened are of a consistent thickness at each fastener location either type will work very well. If the thickness is variable at different fastener locations we recommend the adjustable depth receptacles for ease of use. After selecting the basic type of receptacle to be used, refer to the tables below to select from the various styles, options, materials, etc.

The receptacles are usually attached to the support (inside) panel with rivets. The Rigid Style is a fixed depth, solid, machined piece. This style does not allow for misalignment of fastener to receptacle holes. They are available with plain rivet holes (most common) or countersunk rivet holes. The countersunk rivet holes allow relief for receptacles to be attached to thin sheet metal panels that have dimpled holes for flush attachment rivets. Various materials are available for any receptacle type or style.

We recommend MS213 type receptacles for most applications for their ease of use and simplicity.
Click Here for Installation Instructions and More Information on our adjustable depth receptacles!

The MS213 Adjustable Depth Receptacle Makes 2600 / 2700 and 2800 Series C-Spec Fasteners More Versatile and Easier to Install Than Ever Before!

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MS213
(Exploded View)

Any one stud length fits a wide range of panels

The MS213 is an exact replacement for 212-12 receptacles

Standard aluminum MS213A receptacles are lighter than 212 fixed depth receptacles with no sacrifice in strength ratings.

Economical. Simply inventory one stud length for all applications.

Fully compatible with existing C-Spec (Camloc®) designs.

FAA approved for aircraft use under TSO-C-148.

Adjustable Depth Type
Fixed Depth Type
Encapsulated Type
Threaded Type
Ultra Sonic / Bonded Type

Click on desired Part Number below to add the item to your shopping cart
(quantity can be adjusted after adding item to cart).

Part Number Style Material

MS213A Adjustable Depth, Rigid Receptacle, Plain Rivet Holes Aluminum

MS213ST Adjustable Depth, Rigid Receptacle, Plain Rivet Holes Zinc Plated Steel

MS213SS Adjustable Depth, Rigid Receptacle, Plain Rivet Holes Stainless Steel

MS213AD Adjustable Depth, Rigid Receptacle, Csk Rivet Holes Aluminum

MS213STD Adjustable Depth, Rigid Receptacle, Csk Rivet Holes Zinc Plated Steel

MS213SSD Adjustable Depth, Rigid Receptacle, Csk Rivet Holes Stainless Steel

MS213-BR * Adjustable Depth, Rigid Receptacle, Side Mount (90° Bracket) Zinc Plated Steel

212-12 Fixed Depth, Rigid Receptacle, Plain Rivet Holes Zinc Plated Steel

212-12A Fixed Depth, Rigid Receptacle, Plain Rivet Holes Aluminum

212-12S Fixed Depth, Rigid Receptacle, Plain Rivet Holes Stainless Steel

212-12D Fixed Depth, Rigid Receptacle, Csk Rivet Holes Zinc Plated Steel

212-12SD Fixed Depth, Rigid Receptacle, Csk Rivet Holes Stainless Steel

212-12N Fixed Depth, Rigid Receptacle, Narrow Width, Plain Rivet Holes Zinc Plated Steel

212-12NS Fixed Depth Receptacle, Narrow Width, Plain Rivet Holes Stainless Steel

212-12ND Fixed Depth, Rigid Receptacle, Narrow Width, Csk Rivet Holes Zinc Plated Steel

212-12NDS Fixed Depth, Rigid Receptacle, Narrow Width, Csk Rivet Holes Stainless Steel

212-12BR * Adjustable Depth, Rigid Receptacle, Side Mount (90° Bracket) Zinc Plated Steel

99R10S * Fixed Depth, Threaded Receptacle and Panel Nut Stainless Steel

MS26R16-1 Fixed Depth Receptacle, Encapsulated, Plain Rivet Holes Zinc Plated Steel

MS26R16-2 Fixed Depth Receptacle, Encapsulated, Csk Rivet Holes Zinc Plated Steel

MS26R18-1 Fixed Depth Receptacle, Encapsulated, Plain Rivet Holes Stainless Steel

MS26R18-2 Fixed Depth Receptacle, Encapsulated, Csk Rivet Holes Stainless Steel

26R6-1BB Fixed Depth Receptacle, Stamped, Light Weight Zinc Plated Steel

26R48-1-1AA Fixed Depth Receptacle, Long, Ultra Sonic or Epoxy Bonded Zinc Plated Steel

26R48-2-1AA Fixed Depth Receptacle, Short, Ultra Sonic or Epoxy Bonded Zinc Plated Steel

* SPECIAL NOTES: When using 212-12BR or MS213-BR receptacles add .038" to your TMT calculations.
When using 99R10 receptacles add .020" to your TMT calculations.

Table # 2
2600 / 2700 and 2800 Series Stud Retainers

A stud retainer is placed on the stud after it is installed in the panel hole, on the inside of the panel to keep the stud assembly with the panel when the fastener is unlocked. The SW type works best for curved or sliding panels. The rigid LW and 27S5-1 types keep the stud firmly in place and work better on flat panels.

2600-SW Type
2600-LW Type
27S5-1 Type

Part Number Description Application

2600-SW Split Ring Retainer, Sliding or Curved Panels, Stainless Any 2600 / 2700 / 2800 Stud

2600-SW2 Split Ring Retainer, Sliding or Curved Panels, Steel Any 2600 / 2700 / 2800 Stud

2600-LW-7 Internal Tooth Retainer for Flat Panels, Stainless 2600 Series Only

2600-LW Internal Tooth Retainer for Flat Panels, Steel 2600 Series Only

27S5-1S Internal Tooth Retainer for Dimpled Panels, Stainless 2700 / 2800 Series Only

Table # 3
Select Stud Series, Head Style and Material
(click the pictures to see other head style options)

2600 Series 2700 Series 2800 Series

The 2600 series are Low Profile with a 1/2" surface area. They are available in Slotted Head, Phillips Head, Fixed Wing Head or Folding Bail Head Styles.
The 2700 series are Countersunk Flush with a .393" surface area. They are available in Slotted Head or Phillips Head Styles. Miniature series for tight space.
The 2800 series are Countersunk Flush with a 1/2" surface area. They are available in Slotted Head or Phillips Head Styles. Standard series, most uses.

Click on desired Part Number below to add the item to your shopping cart
(quantity can be adjusted after adding item to cart).

TABLE # 4

C-Spec 2600 Series Studs, Slotted and Phillips Head

Total Material Thickness (TMT) Using MS213 Adjustable Depth Receptacles Total Material Thickness (TMT) Using Standard Fixed Depth Receptacles Slotted Head      Phillips Head
Total
Stud Length ("S" Dimension)
( ± .010")

Steel   Stainless Steel   Stainless

.010 - .370 .030 - .059 2600-1   2600-1S   26S8-1   26S51-1
0.760

.040 - .400
.060 - .089
2600-2   2600-2S   26S8-2   26S51-2
0.790

.070 - .430
.090 - .119
2600-3   2600-3S   26S8-3   26S51-3
0.820

.100 - .460
.120 - .149
2600-4   2600-4S   26S8-4   26S51-4
0.850

.130 - .490
.150 - .179
2600-5   2600-5S   26S8-5   26S51-5
0.880

.160 - .520
.180 - .209
2600-6   2600-6S   26S8-6   26S51-6
0.910

.190 - .550
.210 - .239
2600-7   2600-7S   26S8-7   26S51-7
0.940

.220 - .580
.240 - .269
2600-8   2600-8S   26S8-8   26S51-8
0.970

.250 - .610
.270 - .299
2600-9   2600-9S   26S8-9   26S51-9
1.000

.280 - .640
.300 - .329
2600-10 2600-10S 26S8-10 26S51-10
1.030

.310 - .670
.330 - .359
2600-11 2600-11S 26S8-11 26S51-11
1.060

.340 - .700
.360 - .389
2600-12 2600-12S 26S8-12 26S51-12
1.090

.370 - .730
.390 - .419
2600-13 2600-13S 26S8-13 26S51-13
1.120

.400 - .760
.420 - .449
2600-14 2600-14S 26S8-14 26S51-14
1.150

.430 - .790 .450 - .479 2600-15 2600-15S 26S8-15 26S51-15 1.180

.460 - .820 .480 - .509 2600-16 2600-16S 26S8-16 26S51-16 1.210

.490 - .850 .510 - .539 2600-17 2600-17S 26S8-17 26S51-17 1.240

.520 - .880 .540 - .569 2600-18 2600-18S 26S8-18 26S51-18 1.270

.550 - .910 .570 - .599 2600-19 2600-19S 26S8-19 26S51-19 1.300

.580 - .940 .600 - .629 2600-20 2600-20S 26S8-20 26S51-20 1.330

Longer lengths are available:
Add .030" (.762mm) to minimum and maximum grip ranges for every stud dash number increase. If your TMT is very near the high end of the range, the next longer stud length is recommended.
Easy conversion: Inches x 25.4 = mm        mm ÷ 25.4 = Inches

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TABLE # 5

C-Spec 2600 Series Studs,
Folding Bail Head and Fixed Wing Head

Total Material
Thickness (TMT) Using MS213 Adjustable Depth Receptacle

Total Material
Thickness (TMT) Using Standard Fixed Depth Receptacle

Folding Bail Head Studs
Fixed Wing Head Studs
Total
Stud Length
(Tol: ± .010")

Stainless Steel Stainless

.010 - .370 .030 - .059 26S22-1B 2600-1W   2600-1SW
0.760

.040 - .400
.060 - .089
26S22-2B 2600-2W   2600-2SW
0.790

.070 - .430
.090 - .119
26S22-3B 2600-3W   2600-3SW
0.820

.100 - .460
.120 - .149
26S22-4B 2600-4W   2600-4SW
0.850

.130 - .490
.150 - .179
26S22-5B 2600-5W   2600-5SW
0.880

.160 - .520
.180 - .209
26S22-6B 2600-6W   2600-6SW
0.910

.190 - .550
.210 - .239
26S22-7B 2600-7W   2600-7SW
0.940

.220 - .580
.240 - .269
26S22-8B 2600-8W   2600-8SW
0.970

.250 - .610
.270 - .299
26S22-9B 2600-9W   2600-9SW
1.000

.280 - .640
.300 - .329
26S22-10B 2600-10W 2600-10SW
1.030

.310 - .670
.330 - .359
26S22-11B 2600-11W 2600-11SW
1.060

.340 - .700
.360 - .389
26S22-12B 2600-12W 2600-12SW
1.090

.370 - .730
.390 - .419
26S22-13B 2600-13W 2600-13SW
1.120

.400 - .760
.420 - .449
26S22-14B 2600-14W 2600-14SW
1.150

.430 - .790 .450 - .479 26S22-15B 2600-15W 2600-15SW 1.180

.460 - .820 .480 - .509 26S22-16B 2600-16W 2600-16SW 1.210

.490 - .850 .510 - .539 26S22-17B 2600-17W 2600-17SW 1.240

.520 - .880 .540 - .569 26S22-18B 2600-18W 2600-18SW 1.270

.550 - .910 .570 - .599 26S22-19B 2600-19W 2600-19SW 1.300

.580 - .940 .600 - .629 26S22-20B 2600-20W 2600-20SW 1.330

Longer lengths are available:
Add .030" (.762mm) to minimum and maximum grip ranges for every stud dash number increase.     Easy conversion: Inches x 25.4 = mm        mm ÷ 25.4 = Inches

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TABLE # 6

C-Spec 2700 Series Studs, Slotted and Phillips Head

Total Material
Thickness (TMT) Using MS213 Adjustable Depth Receptacles Total Material     Thickness (TMT)
Using Standard Fixed Depth Receptacles Slotted Head Phillips Head

Overall Stud Length
(Tol: ± .010")

Steel   Stainless Steel   Stainless

.010 - .310 .030 - .059 2700-1   2700-1S   27S3-1   27S3-1S
0.610

.040 - .340
.060 - .089
2700-2   2700-2S   27S3-2   27S3-2S
0.640

.070 - .370
.090 - .119
2700-3   2700-3S   27S3-3   27S3-3S
0.670

.100 - .400
.120 - .149
2700-4   2700-4S   27S3-4   27S3-4S
0.700

.130 - .430
.150 - .179
2700-5   2700-5S   27S3-5   27S3-5S
0.730

.160 - .460
.180 - .209
2700-6   2700-6S   27S3-6   27S3-6S
0.760

.190 - .490
.210 - .239
2700-7   2700-7S   27S3-7   27S3-7S
0.790

.220 - .520
.240 - .269
2700-8   2700-8S   27S3-8   27S3-8S
0.820

.250 - .550
.270 - .299
2700-9   2700-9S   27S3-9   27S3-9S
0.850

.280 - .580
.300 - .329
2700-10 2700-10S 27S3-10 27S3-10S
0.880

.310 - .610
.330 - .359
2700-11 2700-11S 27S3-11 27S3-11S
0.910

.340 - .640
.360 - .389
2700-12 2700-12S 27S3-12 27S3-12S
0.940

.370 - .670
.390 - .419
2700-13 2700-13S 27S3-13 27S3-13S
0.970

.400 - .700
.420 - .449
2700-14 2700-14S 27S3-14 27S3-14S
1.000

.430 - .730 .450 - .479 2700-15 2700-15S 27S3-15 27S3-15S 1.030

.460 - .760 .480 - .509 2700-16 2700-16S 27S3-16 27S3-16S 1.060

.490 - .790 .510 - .539 2700-17 2700-17S 27S3-17 27S3-17S 1.090

.520 - .820 .540 - .569 2700-18 2700-18S 27S3-18 27S3-18S 1.120

.550 - .850 .570 - .599 2700-19 2700-19S 27S3-19 27S3-19S 1.150

.580 - .880 .600 - .629 2700-20 2700-20S 27S3-20 27S3-20S 1.180

Longer lengths are available:
Add .030" (.762mm) to minimum and maximum grip ranges for every stud dash number increase.     Easy conversion: Inches x 25.4 = mm        mm ÷ 25.4 = Inches

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TABLE # 7

C-Spec 2800 Series Studs, Slotted and Phillips Head

Total Material
Thickness (TMT) Using MS213 Adjustable Depth Receptacle Total Material     Thickness (TMT)
Using Standard Fixed Depth Receptacle Slotted Head Phillips Head

Overall Stud Length
(Tol: ± .010")

Steel   Stainless Steel   Stainless

.010 - .310 .030 - .059 2800-1 2800-1S 28S3-1 28S3-1S
0.610

.040 - .340
.060 - .089
2800-2 2800-2S 28S3-2 28S3-2S
0.640

.070 - .370
.090 - .119
2800-3 2800-3S 28S3-3 28S3-3S
0.670

.100 - .400
.120 - .149
2800-4 2800-4S 28S3-4 28S3-4S
0.700

.130 - .430
.150 - .179
2800-5 2800-5S 28S3-5 28S3-5S
0.730

.160 - .460
.180 - .209
2800-6 2800-6S 28S3-6 28S3-6S
0.760

.190 - .490
.210 - .239
2800-7 2800-7S 28S3-7 28S3-7S
0.790

.220 - .520
.240 - .269
2800-8 2800-8S 28S3-8 28S3-8S
0.820

.250 - .550
.270 - .299
2800-9 2800-9S 28S3-9 28S3-9S
0.850

.280 - .580
.300 - .329
2800-10 2800-10S 28S3-10 28S3-10S
0.880

.310 - .610
.330 - .359
2800-11 2800-11S 28S3-11 28S3-11S
0.910

.340 - .640
.360 - .389
2800-12 2800-12S 28S3-12 28S3-12S
0.940

.370 - .670
.390 - .419
2800-13 2800-13S 28S3-13 28S3-13S
0.970

.400 - .700
.420 - .449
2800-14 2800-14S 28S3-14 28S3-14S
1.000

.430 - .730 .450 - .479 2800-15 2800-15S 28S3-15 28S3-15S 1.030

.460 - .760 .480 - .509 2800-16 2800-16S 28S3-16 28S3-16S 1.060

.490 - .790 .510 - .539 2800-17 2800-17S 28S3-17 28S3-17S 1.090

.520 - .820 .540 - .569 2800-18 2800-18S 28S3-18 28S3-18S 1.120

.550 - .850 .570 - .599 2800-19 2800-19S 28S3-19 28S3-19S 1.150

.580 - .880 .600 - .629 2800-20 2800-20S 28S3-20 28S3-20S 1.180

Longer lengths are available:
Add .030" (.762mm) to minimum and maximum grip ranges for every stud dash number increase.     For metric conversion use this formula: Inches x 25.4 = mm        mm ÷ 25.4 = Inches

Part Number	Description	For Use With
MS-4P3	C-Spec Stud Pliers	All C-Spec Studs
MS-T98	Stud Retaining Ring Installation Tool	2000-LW, 27S5-1
MS-T16	Drill Jig Tool for Proper Rivet Spacing	Any C-Spec Receptacle
MS-DT-2	Drill Template for Adjustable Receptacles	MS213 Adj. Receptacles
UNIBIT-1	Step Drill Bit for Installing Studs & Receptacles	Any 2000 Series Stud
MS-27DT	Panel Dimpling Tool	2700 / 2800 Series Studs
MS-PK	Pick Tool for Unlocking & Adjusting MS213	MS213 Adj. Receptacles

Part Number	Style	Material
MS213A	Adjustable Depth, Rigid Receptacle, Plain Rivet Holes	Aluminum
MS213ST	Adjustable Depth, Rigid Receptacle, Plain Rivet Holes	Zinc Plated Steel
MS213SS	Adjustable Depth, Rigid Receptacle, Plain Rivet Holes	Stainless Steel
MS213AD	Adjustable Depth, Rigid Receptacle, Csk Rivet Holes	Aluminum
MS213STD	Adjustable Depth, Rigid Receptacle, Csk Rivet Holes	Zinc Plated Steel
MS213SSD	Adjustable Depth, Rigid Receptacle, Csk Rivet Holes	Stainless Steel
MS213-BR *	Adjustable Depth, Rigid Receptacle, Side Mount (90° Bracket)	Zinc Plated Steel
212-12	Fixed Depth, Rigid Receptacle, Plain Rivet Holes	Zinc Plated Steel
212-12A	Fixed Depth, Rigid Receptacle, Plain Rivet Holes	Aluminum
212-12S	Fixed Depth, Rigid Receptacle, Plain Rivet Holes	Stainless Steel
212-12D	Fixed Depth, Rigid Receptacle, Csk Rivet Holes	Zinc Plated Steel
212-12SD	Fixed Depth, Rigid Receptacle, Csk Rivet Holes	Stainless Steel
212-12N	Fixed Depth, Rigid Receptacle, Narrow Width, Plain Rivet Holes	Zinc Plated Steel
212-12NS	Fixed Depth Receptacle, Narrow Width, Plain Rivet Holes	Stainless Steel
212-12ND	*Fixed Depth, Rigid Receptacle,* Narrow Width, Csk Rivet Holes**	Zinc Plated Steel
212-12NDS	*Fixed Depth, Rigid Receptacle,* Narrow Width, Csk Rivet Holes**	Stainless Steel
212-12BR *	Adjustable Depth, Rigid Receptacle, Side Mount (90° Bracket)	Zinc Plated Steel
99R10S *	Fixed Depth, Threaded Receptacle and Panel Nut	Stainless Steel
MS26R16-1	Fixed Depth Receptacle, Encapsulated, Plain Rivet Holes	Zinc Plated Steel
MS26R16-2	Fixed Depth Receptacle, Encapsulated, Csk Rivet Holes	Zinc Plated Steel
MS26R18-1	Fixed Depth Receptacle, Encapsulated, Plain Rivet Holes	Stainless Steel
MS26R18-2	Fixed Depth Receptacle, Encapsulated, Csk Rivet Holes	Stainless Steel
26R6-1BB	Fixed Depth Receptacle, Stamped, Light Weight	Zinc Plated Steel
26R48-1-1AA	Fixed Depth Receptacle, Long, Ultra Sonic or Epoxy Bonded	Zinc Plated Steel
26R48-2-1AA	Fixed Depth Receptacle, Short, Ultra Sonic or Epoxy Bonded	Zinc Plated Steel
* SPECIAL NOTES: When using 212-12BR or MS213-BR receptacles add .038" to your TMT calculations. When using 99R10 receptacles add .020" to your TMT calculations.

Table # 3 Select Stud Series, Head Style and Material (click the pictures to see other head style options)
2600 Series	2700 Series	2800 Series
The 2600 series are Low Profile with a 1/2" surface area. They are available in Slotted Head, Phillips Head, Fixed Wing Head or Folding Bail Head Styles.	The 2700 series are Countersunk Flush with a .393" surface area. They are available in Slotted Head or Phillips Head Styles. Miniature series for tight space.	The 2800 series are Countersunk Flush with a 1/2" surface area. They are available in Slotted Head or Phillips Head Styles. Standard series, most uses.

Total Material Thickness (TMT) Using MS213 Adjustable Depth Receptacle	Total Material Thickness (TMT) Using Standard Fixed Depth Receptacle	Folding Bail Head Studs	Fixed Wing Head Studs		Total Stud Length (Tol: ± .010")
		Stainless	Steel	Stainless	Total Stud Length (Tol: ± .010")
.010 - .370	.030 - .059	26S22-1B	2600-1W	2600-1SW	0.760
.040 - .400	.060 - .089	26S22-2B	2600-2W	2600-2SW	0.790
.070 - .430	.090 - .119	26S22-3B	2600-3W	2600-3SW	0.820
.100 - .460	.120 - .149	26S22-4B	2600-4W	2600-4SW	0.850
.130 - .490	.150 - .179	26S22-5B	2600-5W	2600-5SW	0.880
.160 - .520	.180 - .209	26S22-6B	2600-6W	2600-6SW	0.910
.190 - .550	.210 - .239	26S22-7B	2600-7W	2600-7SW	0.940
.220 - .580	.240 - .269	26S22-8B	2600-8W	2600-8SW	0.970
.250 - .610	.270 - .299	26S22-9B	2600-9W	2600-9SW	1.000
.280 - .640	.300 - .329	26S22-10B	2600-10W	2600-10SW	1.030
.310 - .670	.330 - .359	26S22-11B	2600-11W	2600-11SW	1.060
.340 - .700	.360 - .389	26S22-12B	2600-12W	2600-12SW	1.090
.370 - .730	.390 - .419	26S22-13B	2600-13W	2600-13SW	1.120
.400 - .760	.420 - .449	26S22-14B	2600-14W	2600-14SW	1.150
.430 - .790	.450 - .479	26S22-15B	2600-15W	2600-15SW	1.180
.460 - .820	.480 - .509	26S22-16B	2600-16W	2600-16SW	1.210
.490 - .850	.510 - .539	26S22-17B	2600-17W	2600-17SW	1.240
.520 - .880	.540 - .569	26S22-18B	2600-18W	2600-18SW	1.270
.550 - .910	.570 - .599	26S22-19B	2600-19W	2600-19SW	1.300
.580 - .940	.600 - .629	26S22-20B	2600-20W	2600-20SW	1.330

Longer lengths are available: Add .030" (.762mm) to minimum and maximum grip ranges for every stud dash number increase. Easy conversion: Inches x 25.4 = mm mm ÷ 25.4 = Inches