No. 4-48 UNF x 3/8" Countersunk Screw allen key

No. 4-48 UNF x 3/8" Countersunk Screw allen key

Countersunk Socket Head Screw – similar to DIN 7991

American fine thread UNF

48 threads per inch (48 TPI)

Standard: ASME/ANSI B18.3-2002

Material according to ASTM A574

Hardness: 38–43 HRC

Fit class: 3A

Heat-treated alloy steel, 1960 series

Similar to DIN 7991

Dimensions

Overall length including head: 3/8" (9.53 mm)

Thread diameter: 2.85 mm

Hex socket size (across flats): 1/16"

Applications: Ideal for use in vehicles, motorcycles, boats, aircraft, and archery.

Tip: Suitable for compound and recurve bows, archery, sight mounts

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