Model: BM170-4

Socket Head Cap Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.253 inches and 0.345 inches
Fastener Length
Between 0.315 inches and 0.345 inches
Head Style
Flat chamfer
Head Diameter
Between 0.214 inches and 0.223 inches
Head Height
Between 0.133 inches and 0.138 inches
Hole Diameter
Between 0.029 inches and 0.033 inches
Internal Drive Style
Hexagon
Thread Diameter
0.138 inches
Width Across Flats
0.109 inches
Hole Quantity
4
Hole Type
Drilled
Thready Qty Per Inch (tpi)
32
Hole Configuration Style
Round
Material
Steel
Surface Treatment
Cadmium
Surface Treatment Specification
Ps100-2 cagec k0648 mfr ref single treatment response
Thread Series Designator
Unc
NSN
5305-00-167-6720
Part Number
BM170-4
Description
Screw,cap,socket Head
CAGE
K0654

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part BM170-4 NSN 5305-00-167-6720

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
Concept No.:
App. Key:
SC
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
096640
UFC:
50600
LTL:
70.0
LCL:
--
WCC:
713
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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