Model: HW20328

Hexagon Head Cap Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.97 inches and 1.00 inches
Fastener Length
Between 0.97 inches and 1.00 inches
Head Style
Hexagon
Head Height
Between 0.195 inches and 0.211 inches
Width Between Flats
Between 0.489 inches and 0.500 inches
End Application
2355-01-539-3639
Thread Diameter
0.3125 inches
Thready Qty Per Inch (tpi)
18
Chamfer Angle
Between 15.0 degrees and 30.0 degrees
Part Name Assigned By Controlling Agency
5/16-18x1, hex cap screw, 18-8 stainless steel
Material
Steel property class 18.8
Material Specification
Alloy, group 1, cond cw of astm f593 assn standard single material response
Surface Treatment Specification
Descaled or clean iaw astm a380 assn standard single treatment response
Thread Series Designator
Unc
NSN
5305-01-617-0403
Part Number
HW20328
Description
Screw,cap,hexagon Head
CAGE
L0782

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

Part HW20328 NSN 5305-01-617-0403

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
18257
FIIG:
A003B0
Concept No.:
App. Key:
SB
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:
A
ESD:
A
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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