Model: PBF1682-4-12C

Internal Wrenching Bolt

Special Features:

Grip length min .7400 max .7600 grip diameter min .2490 max .2495

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.403 inches
Fastener Length
Between 1.1430 inches and 1.1630 inches
Head Style
Flat countersunk
Head Diameter
Between 0.485 inches and 0.495 inches
Spline Major Diameter
Between 0.173 inches and 0.183 inches
Internal Drive Style
Torx
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
3490 pounds per square inch
Countersink Angle
Between 129.0 degrees and 131.0 degrees
Material
Stainless steel
Material Specification
Ams5844 assn standard single material response
Thread Series Designator
Unf
NSN
5306-01-478-2440
Part Number
PBF1682-4-12C
Description
Bolt,internal Wrenching
CAGE
27624

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Part PBF1682-4-12C NSN 5306-01-478-2440

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06666
FIIG:
A003B0
Concept No.:
App. Key:
BM
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:
BQ
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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