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NAS1102-3-28

Flat Head Machine Screw

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Description

Flat Head Machine Screw

Specifications

Countersink Angle Between 99.0 degrees and 101.0 degrees
Country of Origin USA
Drive Style Offset Cruciform
Fastener Length 1.750
Hardness Rating Between 36.0 rockwell c and 40.0 rockwell c
Head Angle 100 º
Head Diameter Between 0.322 inches and 0.385 inches
Head Style Flat countersunk
Head Type Flat
Industry Standards/Certification NAS1102
Internal Drive Style Torque set
Length 1 3/4, 1.75 in
Material Steel
Material Specification Mil-s-5000 military specification 1st material response or mol-s-6049 military specification 2nd material response or mil-s-6098 military specification 3rd material response or mil-s-8503 military specification 4th material response or mil-s-5626 military specification 5th material response or ams 6300 assn standard 6th material response
Min. Tensile Strength (psi) 160000 pounds per square inch
NIIN 00-948-4131
NSN 5305-00-948-4131
Sold In Per Package
Surface Treatment Cadmium and chromate
Surface Treatment Specification Type 2 cl 3 federal specification all treatment responses qq-p-416
Thread Class 3a
Thread Diameter 0.190
Thread Direction Right-hand
Thread Length Between 1.688 inches and 1.750 inches
Thread Qty 32
Thread Qty Per Inch (tpi) 32
Thread Series UNF
Thread Series Designator Unf (fine thread)
Thread Size 0.1900-32, 10
Thread Type Full Thread
Weight 0.01 lb

Cross-reference

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