D Min. L** FD FH Ferrule Code
#10 3/4* 0.281 0.093 F187
1/4 3/4* 0.359 0.109 F250
5/16 3/4* 0.437 0.109 F312
3/8 3/4* 0.500 0.125 F375
7/16 7/8 0.578 0.140 F437
1/2 7/8 0.625 0.156 F500
5/8 1-1/8 0.796 0.187 F625
3/4 1-1/8 0.937 0.250 F750
7/8 1-1/2 1.093 0.312 F875
* Ferrules used with studs 3/4" long are special "short F" ferrules.
**KNOCK-OFF studs are available if shorter lengths are required.

Materials
Low Carbon Steel
C - 0.23% max. P - 0.04% max.
Mn - 0.90% max. S - 0.05% max.

Stainless Steel
AISI grade - 302/304/305 std.
Other grades available upon request.

Mechanical Properties
Low Carbon Steel
Tensile - 60,000 psi (min.)
Yield - 50,000 psi (min.)
Elongation - 20% (in 2 inches)

Stainless Steel
Values for various grades available upon request.

Plating
Low Carbon Steel
Plating is not standard.
Copper, nickel, and zinc available upon customer request.

Stainless Steel
Does not apply to Stainless.

Ferrules
Ferrules are component parts of studs. Not sold separately.

Threads
Standard thread is UNC-2A (Rolled when possible), other threads are available upon request.
Maximum standard thread length is 3-7/8".

Compliances & Standards
MIL-S-24149 (Military Specification: Studs, Welding and Arc Shields (Ferrules)

Please click the Request Information button to configure your Full Thread Arc Weld Studs.
Unit of Measure

Ferrules

Ferrules

N/A
Code B D E M Part No.
F187 0.305 0.390 0.156 0.390 092 0005 05
F250 0.380 0.455 0.156 0.390 092 0005 06
F312 0.445 0.578 0.156 0.265 092 0005 07
F375 0.505 0.640 0.156 0.329 092 0005 08
F437 0.585 0.703 0.188 0.362 092 0005 09
F500 0.650 0.795 0.188 0.433 092 0005 10
F625 0.785 1.030 0.188 0.526 092 0005 11
F750 1.030 1.218 0.188 0.593 092 0005 12
F875 1.203 1.406 0.188 0.732 092 0005 13

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