Hexagon Socket Head Cap Screw
ASME B18.3 steel alloy plain UNC
SCR-HX-SOC-ALLOY-1/4_20X1/2
Register now and access more than 125,000 products
1 INCH (in) = 25, 4 mm
The alloy strength class is comparable with metric strength class 12.9
Socket screws to ASME B 18.3 do not have the strength class marked on the head since, according to ASTM 574, they have only one strength class.
Standard thread tolerance according to ASME B1.1 = 3A (for external thread)
Datasheets(X)
Nominal diameter (d1) | 1/4 in |
Length (l1) | 1/2 in |
Head diameter | 0.375 in |
Head height | 0.250 in |
Internal drive (s1) | HS1/8 inch |
Material | Alloy |
Surface | Plain |
Number of thread starts per inch | 20 |
Last viewed
Hose clamp with asymmetrical lock
Flanged aluminium standing ladder with steps
Countersunk tapping screw shape C with H recessed head DIN 7982, steel, zinc-plated, blue passivated (A2K)
Split pin ISO/WN 1234 steel zinc-plated
Serrated lock washer, internally serrated, shape J DIN 6798 stainless steel. Internally serrated.
VDE screwdriver For hexagon drive
Hand saw blade
Furniture handle screw For attaching furniture handles with M4 connecting threads and combination slot drive
O-ring, imperial NBR 70
Nitrile chemical protective glove With cotton velour finish inside