Model: C4BM1229-1

Shoulder Bolt

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.489 inches
Fastener Length
Between 2.080 inches and 2.120 inches
Head Style
Round w/wrench flats
Head Diameter
Between 0.990 inches and 1.000 inches
Head Height
Between 0.140 inches and 0.160 inches
Width Between Flats
Between 0.740 inches and 0.750 inches
Shoulder Diameter
0.500 inches first shoulder
Shoulder Diameter
0.374 inches second shoulder
Shoulder Length
0.406 inches second shoulder and 0.411 inches second shoulder
Shoulder Length
1.200 inches first shoulder and 1.205 inches first shoulder
Shank Unthreaded Hole Diameter
0.076 inches first hole
Thread Diameter
0.312 inches
Thready Qty Per Inch (tpi)
24
Min. Tensile Strength (psi)
145000 pounds per square inch
Distance From Head Largest Bearing Surface To Shank Hole Center
1.890 inches first hole and 1.930 inches first hole
Shoulder Shape
Round all shoulders
Material
Steel comp e4340 or steel comp 4340
Material Specification
Mil-s-5000 military specification 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
5306-00-837-1155
Part Number
C4BM1229-1
Description
Bolt,shoulder
CAGE
71867

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes thumbscrew.

Part C4BM1229-1 NSN 5306-00-837-1155

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04905
FIIG:
A003B0
Concept No.:
App. Key:
BY
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:
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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