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NAS1081-04D3

Setscrew

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Description

Fastener Length: 3/16", Thread: 4-40, Head Width: 3/64", Thread Length: 3/16

Specifications

Fastener Length 0.188
Hardness Rating 45.0 rockwell c minimum and 53.0 rockwell c maximum
Head Style Headless (setscrew)
Internal Drive Style Hexagon
Locking Feature Pellet threads or strip threads
Material Steel
Material Specification 66 fed std all material responses
Point Style Cup
Surface Treatment Cadmium and chromate
Thread Class 3a
Thread Diameter 0.112
Thread Direction Right-hand
Thread Length 0.188 inches maximum
Thread Qty Per Inch (tpi) 40
Thread Series Designator UNC
Width Across Flats 0.050 inches minimum and 0.051 inches maximum

Other sizes

Parts that share this base number, ordered by size. Always verify the full specification before substituting.

Cross-reference

Similar parts

Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.

  • MS51023-19 MS 3/16 in · Headless (setscrew) · CRES

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