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29CM1220 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

29CM1220: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 8.8 OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 11.90 MILLIMETERS MAXIMUM MM, thread_length: 17.4 MILLIMETERS MINIMUM AND 18.2 MILLIMETERS MAXIMUM MM, fastener_length: 19.6 MILLIMETERS MINIMUM AND 20.4 MILLIMETERS MAXIMUM MM, hardness_rating: 20.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-313-5130, 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
29CM1220
NSN: 5305-01-313-5130
FSC: 5305 — Screws
CAGE: 89749 — CLARK MATERIAL HANDLING COMPANY (USA)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 8.8 OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height11.90 MILLIMETERS MAXIMUM MM
thread_length17.4 MILLIMETERS MINIMUM AND 18.2 MILLIMETERS MAXIMUM MM
fastener_length19.6 MILLIMETERS MINIMUM AND 20.4 MILLIMETERS MAXIMUM MM
hardness_rating20.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE ZINC OVERALL
width_between_flats14.57 MILLIMETERS MINIMUM AND 15.00 MILLIMETERS MAXIMUM MM
nominal_thread_diameter12.0 MILLIMETERS MM
extended_washer_diameter24.70 MILLIMETERS MAXIMUM MM
minimum_tensile_strength800 MEGAPASCALS
NSN5305-01-313-5130
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 29CM1220 · 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
•
EXTENDED WASHER THICKNESS: 1.80 MILLIMETERS MINIMUM MM
•
HEAD HEIGHT: 11.90 MILLIMETERS MAXIMUM MM
•
EXTERNAL THREAD TOLERANCE CLASS: 6G G
•
FASTENER LENGTH: 19.6 MILLIMETERS MINIMUM AND 20.4 MILLIMETERS MAXIMUM MM
•
EXTENDED WASHER DIAMETER: 24.70 MILLIMETERS MAXIMUM MM
•
THREAD PITCH IN MILLIMETERS: 1.75
•
THREAD LENGTH: 17.4 MILLIMETERS MINIMUM AND 18.2 MILLIMETERS MAXIMUM MM
•
HARDNESS RATING: 20.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS1.80 MILLIMETERS MINIMUM MM
HEAD HEIGHT11.90 MILLIMETERS MAXIMUM MM
EXTERNAL THREAD TOLERANCE CLASS6G G
FASTENER LENGTH19.6 MILLIMETERS MINIMUM AND 20.4 MILLIMETERS MAXIMUM MM
EXTENDED WASHER DIAMETER24.70 MILLIMETERS MAXIMUM MM
THREAD PITCH IN MILLIMETERS1.75
THREAD LENGTH17.4 MILLIMETERS MINIMUM AND 18.2 MILLIMETERS MAXIMUM MM
HARDNESS RATING20.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER12.0 MILLIMETERS MM
HEAD STYLEHEXAGON EXTENDED WASHER
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
29CM1220HReference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 29CM1220?
29CM1220 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 29CM1220?
There is 1 known substitute for 29CM1220: 29CM1220H. Substitute compatibility should be verified for your specific system.
What is the NSN for 29CM1220?
29CM1220 is cataloged in the U.S. Government catalog under NSN 5305-01-313-5130. 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.