ARC Collar Studs

arc collar diagram

General Information

Special Orders: Other diameters, lengths, and materials are available by special order (minimum quantities may apply).

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Note: All metric ARC studs are listed by their length after welding (LAW).

Note: Lengths vary by thread size, with materials available in Mild Steel, Stainless Steel, and Aluminum Alloy.

Select the tab below to view detailed information on each specific part, including diameter, length, material, and corresponding part numbers.

Inch & Metric
arc collar diagram

Mild Steel

A = Thread B = Thread Length Part NO.
1/4-20 1/2" 1/2" .215" 11/16" 3601-9705C
1/4-20 3/4" 1/2" .215" 5/8" 3601-9701
1/4-20 3/4" 1/2" .215" 1.1/8" 3601-9711
5/16-18 3/4" 5/8" .275" 5/8" 3601-9801
5/16-18 5/8" 5/8" .275" 3/4" 3601-9803
3/8-16 5/8" 5/8" .330" 1/2" 3601-9901
3/8-16 5/8" 5/8" .330" 5/8" 3601-9902
3/8-16 5/8" 5/8" .330" 3/4" 3601-9906
3/8-16 5/8" 5/8" .330" 1" 3601-9903
3/8-16 5/8" 5/8" .330" 1.1/8" 3601-9904
3/8-16 5/8" 5/8" .330" 2.1/8" 3601-9924
3/8-16 5/8" 5/8" .330" 2.1/4" 3601-9928
3/8-16 5/8" 5/8" .330" 2.3/8" 3601-9912
3/8-16 5/8" 5/8" .330" 4.1/8" 3601-9925
3/8-16 3/4" 5/8" .330" 1" 3601-9907
3/8-16 3/4" 5/8" .330" 2" 3601-9905
M8 19mm 16mm 7mm 10.5mm (AW) 3631-0819
M8 19mm 16mm 7mm 19mm (AW) 3631-0820
M10 19mm 16mm 9mm 12mm (AW) 3631-1002
M10 19mm 16mm 9mm 25mm (AW) 3631-1003

Studs will be approximately 1/8" shorter after weld. All 1/4" collar studs use ferrule part no. CS-08, all 5/16" collar studs use ferrule part no. CS-10, and all 3/8" collar studs use ferrule part no. CS-12.

arc collar diagram

Stainless Steel

A = Thread B = Thread Length Part NO.
1/4-20 1/2" 1/2" .215" 9/16" 3602-9702
3/8-16 5/8" 5/8" .330" 1.1/8" 3602-9904
3/8-16 1.1/4" 5/8" .330" 3/4" 3602-9910
3/8-16 5/8" 5/8" .330" 1" 3605-9902*
3/8-16 3/4" 5/8" .330" 5/8" 3605-9901*

* 316 Stainless Steel
Studs will be approximately 1/8" shorter after weld. All 1/4" collar studs use ferrule part no. CS-08, all 5/16" collar studs use ferrule part no. CS-10, and all 3/8" collar studs use ferrule part no. CS-12

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