Model: 537613-1

Socket Head Cap Screw

Special Features:

Shank undercut 0.073 in. Min. 0.075 in. Max. Dia. 0.085 in. Min. 0.095 in. Max. Lg

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.165 inches and 0.175 inches
Fastener Length
0.250 inches
Head Style
Flat chamfer
Head Diameter
Between 0.136 inches and 0.140 inches
Head Height
Between 0.083 inches and 0.086 inches
Spline Minor Diameter
Between 0.063 inches and 0.064 inches
Spline Major Diameter
Between 0.073 inches and 0.074 inches
Spline Width
Between 0.015 inches and 0.016 inches
Thread Diameter
0.086 inches
Thready Qty Per Inch (tpi)
56
Material
Steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305
Material Specification
Qq-s-763 federal specification all material responses
Surface Treatment
Passivate
Thread Series Designator
Unc
NSN
5305-00-912-5242
Part Number
537613-1
Description
Screw,cap,socket Head
CAGE
64547

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 537613-1 NSN 5305-00-912-5242

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:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
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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