Model: 6251-12

Ribbed Shoulder Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.938 inches

Fastener Length

1.593 inches

Head Style

Bevel-conical

Head Diameter

0.750 inches

Head Height

0.240 inches

Shoulder Diameter

0.563 inches first shoulder

Shoulder Length

0.376 inches first shoulder

Rib Major Diameter

0.563 inches

Rib Length

0.376 inches

Thread Diameter

0.500 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

110000 pounds per square inch

Rib Included Angle

90.0 degrees

Shoulder Shape

Ribbed first shoulder

Material

Steel

Surface Treatment

Cadmium or zinc

Surface Treatment Specification

Qq-p-416 type 1 cl 3 federal specification 1st treatment response or astm b633 type 2 cl 3 assn standard 1st treatment response

Thread Series Designator

Unf

NSN

5306-01-292-3289

Part Number

6251-12

Description

Bolt,ribbed Shoulder

CAGE

0W357

An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also bolt, ribbed neck.

Part 6251-12 NSN 5306-01-292-3289

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16014

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7318152000
SITC: 69421
End Use: Iron and steel products, other
NAICS: 332722
USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment