Button Head Cap Screws

Nominal Size A H S J T F L Tensile Test Load Single Shear Strength of Body Seating Torques in./lbs.
Head Diameter Head Height Head Side Height Hex Socket Size Key Engagement Fillet Gransition Diameter Max Standard Length
Max Min Max Min Ref Nom Min Max Min Nom Lb. Lbs., Min. Coarse Thread Fine Thread
4 0.213 0.201 0.059 0.051 0.015 1/16 0.035 0.132 0.122 0.50 840 950 7.0 8.
6 0.262 0.250 0.073 0.063 0.015 5/64 0.044 0.158 0.148 0.63 1,260 1,400 13. 15.
8 0.312 0.298 0.087 0.077 0.015 3/32 0.052 0.194 0.184 0.75 1,940 2,000 25. 26.
10 0.361 0.347 0.101 0.091 0.020 1/8 0.070 0.220 0.210 1.00 2,440 2,700 45. 48.
1/4 0.437 0.419 0.132 0.122 0.031 5/32 0.087 0.290 0.280 1.00 4,430 4,700 95. 110.
5/16 0.547 0.527 0.166 0.152 0.031 3/16 0.105 0.353 0.343 1.00 7,300 7,300 190. 210.
3/8 0.656 0.636 0.199 0.185 0.031 7/32 0.122 0.415 0.405 1.25 10,800 10,600 300. 300.
1/2 0.875 0.851 0.265 0.245 0.046 5/16 0.175 0.560 0.540 2.00 19,800 18,800 900. 960.
5/8 1.000 0.970 0.331 0.311 0.062 3/8 0.210 0.685 0.665 2.00 31,500 29,400 1,700. 1,900.