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Library › Hardware › Machine screws, inch (ASME B18.6.3): pan, 82° flat, round, truss…

1/4 truss head machine screw envelope

1/4 truss head machine screw envelope: shallow spherical cap through Ø14.55 mm (A max 0.573 in) and 3.81 mm high (H max 0.150 in), slot 0.075 in x 0.070 in deep, plain Ø6.350 mm shank, example length 0.75 in (Xem's choice); no thread or Phillips cross

Exact dimensions. True size, no tolerance added. Threads are plain cylinders at the major diameter.

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From the full sheet

Machine screws, inch (ASME B18.6.3): pan, 82° flat, round, truss, fillister heads #0 to 1/2 — head, slot and recess sizes + envelope models: every size, notes, mating features and sources. What are the head diameter, head height, slot and Phillips recess sizes of a #6-32 or 1/4-20 machine screw (pan, flat, round, truss, fillister)?

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