Model: 20X674

Ribbed Shoulder Bolt

Properties:

Thread Direction

Right-hand

Thread Length

1.000 inches

Fastener Length

2.469 inches

Head Style

Flat chamfer

Head Diameter

1.188 inches

Head Height

0.312 inches

Shoulder Diameter

0.835 inches first shoulder and 0.870 inches first shoulder

Shoulder Length

0.906 inches first shoulder

Rib Major Diameter

Between 0.870 inches and 0.880 inches

Rib Length

0.781 inches

Distance From Largest Diameter Of Bearing Surface Of Head To Ribs

0.125 inches

Rib Quantity

Thread Diameter

0.750 inches

Features Provided

Casehardened

Nonstandard Thread Pitch Diameter

+0.7054/+0.7094 inches

Thready Qty Per Inch (tpi)

Hardness Rating

18.0 rockwell c and 28.0 rockwell c

Shoulder Shape

Round first shoulder

Material

Steel comp 3120 or steel comp 8720

Material Specification

Aisi assn standard all material responses or sae assn standard all material responses

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type 2, cl 3 federal specification all treatment responses

Thread Series Designator

Unf

NSN

5306-00-798-8934

Part Number

20X674

Description

Bolt,ribbed Shoulder

CAGE

78500

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 20X674 NSN 5306-00-798-8934

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