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PartsTable / COMPONENT / 45458841
45458841 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_height: 0.244 INCHES NOMINAL IN, fastener_length: 0.750 INCHES NOMINAL IN, special_features: ALLOY STEEL, ZINC-PLATED, FULLY THREADED, 3/4? LENGTH UNDER HEAD, surface_treatment: ZINC OVERALL, nominal_thread_diameter: 0.250 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-571-8109, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
45458841
NSN: 5305-01-571-8109
FSC: 5305
CAGE: 4J007 — MSC INDUSTRIAL DIRECT CO., INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_height0.244 INCHES NOMINAL IN
fastener_length0.750 INCHES NOMINAL IN
special_featuresALLOY STEEL, ZINC-PLATED, FULLY THREADED, 3/4? LENGTH UNDER HEAD
surface_treatmentZINC OVERALL
nominal_thread_diameter0.250 INCHES IN
minimum_tensile_strength180 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
part_name_assigned_by_controlling_agency1/4-20 UNC HEX SOCKET CAP SCREW
NSN5305-01-571-8109
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 45458841 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE TREATMENT: ZINC OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL: STEEL OVERALL
•
THREAD QUANTITY PER INCH: 20
•
HEAD HEIGHT: 0.244 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
•
MINIMUM TENSILE STRENGTH: 180 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTZINC OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MATERIALSTEEL OVERALL
THREAD QUANTITY PER INCH20
HEAD HEIGHT0.244 INCHES NOMINAL IN
SPECIAL FEATURESALLOY STEEL, ZINC-PLATED, FULLY THREADED, 3/4? LENGTH UNDER HEAD
FASTENER LENGTH0.750 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTH180 POUNDS PER SQUARE INCH LBS
PART NAME ASSIGNED BY CONTROLLING AGENCY1/4-20 UNC HEX SOCKET CAP SCREW
NOMINAL THREAD DIAMETER0.250 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
460117Interchangeable
interchangeable cross-reference
interchangeable
GML-77711Interchangeable
interchangeable cross-reference
interchangeable
816003Interchangeable
interchangeable cross-reference
interchangeable
NSN-SGGA-24Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 45458841?
45458841 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 45458841?
There are 4 known substitutes for 45458841: 460117, GML-77711, 816003 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 45458841?
45458841 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-571-8109. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026