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Airframe Bolt - Length: 3-5/32", Grip: 2-11/16", Thread: 1/4-28, Cadmium Plated Steel, Undrilled Shank

Detail Characteristic
END ITEM IDENTIFICATIONSAS (STARTING AIR SYS), FFG-7
FASTENER LENGTH3.156 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH2.688 INCHES NOMINAL
HARDNESS RATING26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 4037 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 4140 OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENTCADMIUM OVERALL AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.468 INCHES MINIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM

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Unit of Measure

Discount Table - AN4-31A

Unit
Discount Price / %
100 - 499
$0.91
500 - 999
$0.90
1000 - 2499
$0.87
2500   and up
$0.83

Inventory

 N/A {584}

Estimated Ship Date

 N/A Ships in 1 Business Day

Inventory Note

 N/A Need additional stock? Call (877) 920-1876 or email

Thread Size

 N/A 1/4-28

Length

 N/A 3-5/32 in

Grip

 N/A 2-11/16 in

Drilling

 N/A Undrilled Head

Head Type

 N/A Hexagon

Industry Standards/Certification

 N/A AN4

Weight

 N/A 0.05 lb

NSN

 N/A 5306-00-151-1407

NIIN

 N/A 00-151-1407

Part # Unpunctuated

 N/A AN431A

Minimum Order Note

 N/A Minimum order is 10. Must order in increments of 1.

Country of Origin

 N/A USA

Note

 N/A Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment.

California Residents

 N/A Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.