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B18.6.7M — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

B18.6.7M: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, head_height: 3.5 MILLIMETERS NOMINAL MM, head_diameter: 3.5 MILLIMETERS MINIMUM AND 4.4 MILLIMETERS MAXIMUM MM, thread_length: 25.0 MILLIMETERS NOMINAL MM, screw_material: STEEL CORROSION RESISTING, fastener_length: 40.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-480-0998, 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
B18.6.7M
NSN: 5305-01-480-0998
NIINs: 014800998, 015423460, 015596745, 016452305, 016454962, 016486008
FSC: 5305 — Screws
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
head_height3.5 MILLIMETERS NOMINAL MM
head_diameter3.5 MILLIMETERS MINIMUM AND 4.4 MILLIMETERS MAXIMUM MM
thread_length25.0 MILLIMETERS NOMINAL MM
screw_materialSTEEL CORROSION RESISTING
fastener_length40.0 MILLIMETERS NOMINAL MM
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM
width_between_flats7.8 MILLIMETERS NOMINAL MM
internal_drive_styleCROSS RECESS TYPE 1
end_item_identificationRADAR TRANSMIT SET
nominal_thread_diameter2.0 MILLIMETERS MM
NSN5305-01-480-0998
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B18.6.7M · 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
•
HEAD HEIGHT: 2.7 MILLIMETERS MAXIMUM MM
•
EXTERNAL THREAD TOLERANCE CLASS: 6G G
•
SCREW SURFACE TREATMENT: ZINC
•
FASTENER LENGTH: 50.0 MILLIMETERS MAXIMUM MM
•
THREAD PITCH IN MILLIMETERS: 0.8
•
THREAD LENGTH: 45.3 MILLIMETERS MAXIMUM MM
•
NOMINAL THREAD DIAMETER: 5.0 MILLIMETERS MM
•
HEAD STYLE: FLAT COUNTERSUNK
TECHNICAL CHARACTERISTICS
HEAD HEIGHT2.7 MILLIMETERS MAXIMUM MM
EXTERNAL THREAD TOLERANCE CLASS6G G
SCREW SURFACE TREATMENTZINC
FASTENER LENGTH50.0 MILLIMETERS MAXIMUM MM
THREAD PITCH IN MILLIMETERS0.8
THREAD LENGTH45.3 MILLIMETERS MAXIMUM MM
NOMINAL THREAD DIAMETER5.0 MILLIMETERS MM
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL PROPERTY CLASS 9.8
SUBSTITUTES & CROSS-REFERENCES 1
10604136Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B18.6.7M?
B18.6.7M is a SCREW,MACHINE.
What parts can replace B18.6.7M?
There is 1 known substitute for B18.6.7M: 10604136. Substitute compatibility should be verified for your specific system.
What is the NSN for B18.6.7M?
B18.6.7M is cataloged in the U.S. Government catalog under NSN 5305-01-480-0998. This indicates validated use in U.S. government and defense supply chains.
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