Hexagonal bolt with thread up to the head ASME B18.2.1, plain GR8 steel, UNF (fine thread)
ASME B18.2.1 GR8 plain steel UNF
SCR-HCS-FT-GR8-(PL)-1/4_28X1 1/2
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The thread length deviates from the standard ASME B18.2.1 thread to head
1 INCH (in) = 25.4 mm
FT = full thread
The mechanical properties are regulated in SAE J429.
 | |
Nominal diameter (d1) | 1/4 in |
Length (l1) | 1-1/2 in |
Width across flats (s1) | 7/16 inch |
External drive | WS7/16 |
Material | Steel |
Surface | Plain |
Head type | Hexagon head |
Thread type | UNF |
Property class | GR8 |
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