Model: 6251-12

Ribbed Shoulder Bolt

Properties:

Thread Class
2a
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)
20
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:
BU
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
SX
CRITL:
X

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:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
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

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