BBM7038-040-14 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

BBM7038-040-14: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT COUNTERSUNK, head_diameter: 8.0 MILLIMETERS NOMINAL MM, thread_length: 14.0 MILLIMETERS NOMINAL MM, fastener_length: 14.0 MILLIMETERS NOMINAL MM, hardness_rating: 38.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-346-7811, 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

BBM7038-040-14

NSN: 5305-01-346-7811
FSC: 5305 — Screws
CAGE: 27238 — BRISTOL INDUSTRIES, LLC (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	FLAT COUNTERSUNK
head_diameter	8.0 MILLIMETERS NOMINAL MM
thread_length	14.0 MILLIMETERS NOMINAL MM
fastener_length	14.0 MILLIMETERS NOMINAL MM
hardness_rating	38.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL
thread_direction	RIGHT-HAND
countersink_angle	90.0 DEGREES NOMINAL
surface_treatment	CADMIUM AND CHROMATE OVERALL
width_across_flats	2.5 MILLIMETERS NOMINAL MM
internal_drive_style	HEXAGON
nominal_thread_diameter	4.0 MILLIMETERS MM
NSN	5305-01-346-7811

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 2.5 MILLIMETERS NOMINAL MM

•

EXTERNAL THREAD TOLERANCE CLASS: 6G G

•

FASTENER LENGTH: 14.0 MILLIMETERS NOMINAL MM

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD PITCH IN MILLIMETERS: 0.7

•

THREAD LENGTH: 14.0 MILLIMETERS NOMINAL MM

•

HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL

•

NOMINAL THREAD DIAMETER: 4.0 MILLIMETERS MM

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	2.5 MILLIMETERS NOMINAL MM
EXTERNAL THREAD TOLERANCE CLASS	6G G
FASTENER LENGTH	14.0 MILLIMETERS NOMINAL MM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD PITCH IN MILLIMETERS	0.7
THREAD LENGTH	14.0 MILLIMETERS NOMINAL MM
HARDNESS RATING	38.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER	4.0 MILLIMETERS MM
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND

OTHER ITEMS IN FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831

SUBSTITUTES & CROSS-REFERENCES 2

HS7038M4-14Reference document

Same NSN cross-reference

Reference document — Secondary reference

OSS7038M4-14Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is BBM7038-040-14?

BBM7038-040-14 is a SCREW,CAP,SOCKET HEAD.

What parts can replace BBM7038-040-14?

There are 2 known substitutes for BBM7038-040-14: HS7038M4-14, OSS7038M4-14. Substitute compatibility should be verified for your specific system.

What is the NSN for BBM7038-040-14?

BBM7038-040-14 is cataloged in the U.S. Government catalog under NSN 5305-01-346-7811. This indicates validated use in U.S. government and defense supply chains.

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