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PartsTable / COMPONENT / CL18SHS
CL18SHS ✓ 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 THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1213 OVERALL, head_style: KNURLED NO. 1, head_height: 0.312 INCHES NOMINAL IN, point_style: UNIVERSAL, point_length: 0.359 INCHES NOMINAL IN, thread_class: 2A A.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-850-7036, 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
CL18SHS
NSN: 5305-00-850-7036
FSC: 5305
CAGE: 99862 — CARR LANE MANUFACTURING CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1213 OVERALL
head_styleKNURLED NO. 1
head_height0.312 INCHES NOMINAL IN
point_styleUNIVERSAL
point_length0.359 INCHES NOMINAL IN
thread_class2A A
head_diameter1.000 INCHES NOMINAL IN
thread_length1.110 INCHES MINIMUM IN
point_diameter0.375 INCHES NOMINAL IN
fastener_length1.594 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentOXIDE OR CADMIUM AND CHROMATE OVERALL
NSN5305-00-850-7036
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: CL18SHS · 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
•
THREAD QUANTITY PER INCH: 20
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: OXIDE OR CADMIUM AND CHROMATE OVERALL
•
MATERIAL: STEEL COMP 1213 OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TYPE 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTOXIDE OR CADMIUM AND CHROMATE OVERALL
MATERIALSTEEL COMP 1213 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TYPE 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD CLASS2A A
POINT SWIVEL INCLUDED ANGLE20.0 DEGREES NOMINAL
POINT DIAMETER0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
6556Interchangeable
IBM 6-Slot PCI Riser Card
interchangeable
104540-1Interchangeable
interchangeable cross-reference
interchangeable
10-20076-7Interchangeable
interchangeable cross-reference
interchangeable
147540Interchangeable
interchangeable cross-reference
interchangeable
74454Interchangeable
interchangeable cross-reference
interchangeable
FDC3270-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CL18SHS?
CL18SHS is a THUMBSCREW.
What parts can replace CL18SHS?
There are 12 known substitutes for CL18SHS: 6556, 104540-1, 10-20076-7 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CL18SHS?
CL18SHS is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-850-7036. 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