Model: 12L225-7

Internally Relieved Body Bolt

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.430 inches and 0.440 inches
Fastener Length
3.517 inches
Head Style
Dee
Head Diameter
1.500 inches
Head Height
0.125 inches
Distance From Centerline To Flat
0.657 inches
Shoulder Diameter
Between 1.123 inches and 1.124 inches
Shoulder Length
Between 2.710 inches and 2.720 inches
Shank Unthreaded Hole Diameter
0.127 inches first hole and 0.133 inches first hole
Concentric Hole Diameter
0.500 inches
Thread Diameter
0.875 inches
Thready Qty Per Inch (tpi)
14
Distance From Head Largest Bearing Surface To Shank Hole Center
3.150 inches first hole
Material
Steel
Material Specification
Fms 1011, fscm 81755 mfr ref single material response
Style Designator
Concentric hole unthreaded
Thread Series Designator
Unf
NSN
5306-00-432-5437
Part Number
12L225-7
Description
Bolt,internally Relieved Body
CAGE
81755

An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.

Part 12L225-7 NSN 5306-00-432-5437

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06676
FIIG:
A003B0
Concept No.:
App. Key:
BN
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:
U
ESD:
ESD:
MMAC:
CRITL:
X

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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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