Hexagonal bolt
ASME B18.2.1 steel GR8 zinc-plated trivalent UNC
SCR-HCS-GR8-(ZT)-1/4_20X1 1/4
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Mechanical properties are regulated in SAE J429
Thread length based on standard ASME B18.2.1
1 INCH (in) = 25.4 mm
Standard thread tolerance according to ASME B1.1 = 2A (for male thread)
Datasheets(X)
 | |
Nominal diameter (d1) | 1/4 in |
Length (l1) | 1 1/4 in |
Thread type | UNC |
Head height (k1) | 0.163 in |
External drive (s1) | WS7/16 |
Material | Steel |
Property class | GR8 |
Surface | Zinc plated |
Width across flats | 7/16 inch |
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