Model: 768228-2

Externally Relieved Body Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.330 inches
Fastener Length
Between 0.747 inches and 0.750 inches
Head Style
Hexagon
Head Height
Between 0.080 inches and 0.093 inches
Width Between Flats
Between 0.243 inches and 0.251 inches
First Diameter From Head
Between 0.096 inches and 0.100 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.420 inches
Internal Drive Style
Tri-wing recess
Thread Diameter
0.138 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
160000 pounds per square inch
Hardness Rating
36.0 rockwell c and 40.0 rockwell c
Externally Relieved Body Diameter Quantity
1
Material
Steel comp 4340 or steel comp 8740
Material Specification
Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams6322 assn standard 2nd material response
Surface Treatment
Cadmium bearing surface of head and chromate bearing surface of head
Surface Treatment
Cadmium fastener and chromate fastener
Surface Treatment
Cadmium grip
Surface Treatment
Cadmium head and chromate head
Surface Treatment Specification
Hs74 type 2 class 3 mfr ref single treatment response grip
Surface Treatment Specification
Qq-p-416, type 2 class 2 federal specification single treatment response head
Surface Treatment Specification
Qq-p-416, type 2 class 2 federal specification single treatment response bearing surface of head
Surface Treatment Specification
Qq-p-416, type 2 class 2 federal specification single treatment response fastener
Thread Series Designator
Unjc
NSN
5305-01-206-8399
Part Number
768228-2
Description
Screw,externally Relieved Body
CAGE

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also bolt, externally relieved body and bolt, internal wrenching.

Part 768228-2 NSN 5305-01-206-8399

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01852
FIIG:
A003B0
Concept No.:
App. Key:
SE
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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
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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