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40851-1

Screwlock

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Description

Fastener Length: 7/16", Thread: 2-56, Thread Length: 7/16"

Specifications

Fastener Length 0.438
Head Diameter 0.124 inches minimum and 0.140 inches maximum
Head Height 0.055 inches minimum and 0.062 inches maximum
Head Style Fillister
Internal Drive Style Slot
Length 7/16
Material Steel
Material Specification Qq-s-631-canc fed spec single material response or qq-s-634-canc fed spec single material response or qq-s-637 fed spec single material response
Min. Tensile Strength (psi) 60000 pounds per square inch
Surface Treatment Cadmium
Thread Class 2a
Thread Diameter 0.086
Thread Direction Right-hand
Thread Length 0.438 inches minimum
Thread Qty 56
Thread Qty Per Inch (tpi) 56
Thread Series Designator UNC
Thread Size 2

Cross-reference

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Catalog data updated 2026-07-05. Report a data error