Standard Threaded Stud Load Strengths

Standard Mild Steel Arc Welding Studs - Mechanical Properties

Stud Diameter/Thread	*Max Shear (Lbs)**	Yield Load (Lbs)	Ultimate Load (Lbs)	Yield Torque (Ft Lbs)**	Ultimate Torque (Ft Lbs)**	Recommended Tightening Torque (Ft Lbs)***
10-24	746	830	1030	2.8	3	2
1/4-20	1390	1550	1900	6	7	5
5/16-18	2300	2560	3190	13	15	12
3/8-16	3400	3800	4700	24	27	21
7/16-14	4650	5200	6400	38	42	33
1/2-13	6200	6900	8650	59	65	51
5/8-11	9900	11000	13780	118	130	101
3/4-10	14600	16300	20300	209	230	189
7/8-9	20200	22600	28100	337	370	288
1-8	26600	29600	36900	505	555	432

Steel Properties: Min Tensile Strength 61,000 psi, Min Yield Strength: 49,000 psi

*Shear strength here represents results when the stud is subjected to pure shear without any bending moment present.

**Note that many variables affect the torque results such as steel strength, thread finish, lubrication, washers and hardness.

***Recommended tightening torque data represents 75% of the yield torque figures

Standard Stainless Steel Arc Welding Studs - Mechanical Properties

Stud Diameter/Thread	*Max Shear (Lbs)**	Yield Load (Lbs)	Ultimate Load (Lbs)	Yield Torque (Ft Lbs)**	Ultimate Torque (Ft Lbs)**	Recommended Tightening Torque (Ft Lbs)***
10-24	850	590	1180	2	2.9	1.42
1/4-20	1600	1100	2220	4.3	7	3.5
5/16-18	2640	1830	3660	9	14	7
3/8-16	3900	2700	5400	17	27	13
7/16-14	5350	3700	7440	27	44	20
1/2-13	7150	4950	9900	42	66	32
5/8-11	11300	7900	15800	84	135	64
3/4-10	16800	11600	23300	148	230	111
7/8-9	23200	16199	32300	241	387	181
1-8	30500	21200	42400	361	580	271

Steel Properties: Min Tensile Strength 70,000 psi, Min Yield Strength: 35,000 psi