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12577736-1 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12577736-1: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include head_style: HEADLESS (SETSCREW), point_style: FLAT, thread_class: 3A A, thread_length: 2.100 INCHES NOMINAL IN, point_diameter: 0.270 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN, fastener_length: 2.120 INCHES MINIMUM AND 2.180 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-640-9268, 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
12577736-1
NSN: 5305-01-640-9268
FSC: 5305 — Screws
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
head_styleHEADLESS (SETSCREW)
point_styleFLAT
thread_class3A A
thread_length2.100 INCHES NOMINAL IN
point_diameter0.270 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
fastener_length2.120 INCHES MINIMUM AND 2.180 INCHES MAXIMUM IN
hardness_rating33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM FASTENER
special_featuresLOCKING ELEMENT IAW MIL-DTL-18240
thread_directionRIGHT-HAND
surface_treatmentZINC FASTENER
width_across_flats0.250 INCHES NOMINAL IN
internal_drive_styleHEXAGON
NSN5305-01-640-9268
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12577736-1 · 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
•
POINT DIAMETER: 0.270 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.120 INCHES MINIMUM AND 2.180 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633,TY II,SC 2,0.3 MILS THICK ASSN STD SINGLE TREATMENT RESPONSE FASTENER
•
THREAD LENGTH: 2.100 INCHES NOMINAL IN
•
SUPPLEMENTARY FEATURES: REFER TO DRAWING FOR ADDITIONAL REQUIREMENTS
•
HARDNESS RATING: 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM FASTENER
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
TECHNICAL CHARACTERISTICS
POINT DIAMETER0.270 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
FASTENER LENGTH2.120 INCHES MINIMUM AND 2.180 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633,TY II,SC 2,0.3 MILS THICK ASSN STD SINGLE TREATMENT RESPONSE FASTENER
THREAD LENGTH2.100 INCHES NOMINAL IN
SUPPLEMENTARY FEATURESREFER TO DRAWING FOR ADDITIONAL REQUIREMENTS
HARDNESS RATING33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A322 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-DTL-18240 MIL STD SINGLE MATERIAL RESPONSE LOCKING FEATURE
NOMINAL THREAD DIAMETER0.500 INCHES IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 1
12577736Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12577736-1?
12577736-1 is a SETSCREW.
What parts can replace 12577736-1?
There is 1 known substitute for 12577736-1: 12577736. Substitute compatibility should be verified for your specific system.
What is the NSN for 12577736-1?
12577736-1 is cataloged in the U.S. Government catalog under NSN 5305-01-640-9268. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.