Model: 10721A

Shoulder Bolt

Special Features:

Rounded undercut 0.010 in. Smaller than body 1/32 in. Wide. 0.007 in. Radius between shoulder and thds. Thd end chamfered 1/64 in. 45 degrees angle

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.531 inches
Fastener Length
Between 1.546 inches and 1.578 inches
Head Style
Undercut hexagon
Head Height
Between 0.234 inches and 0.266 inches
Width Between Flats
0.500 inches
Shoulder Diameter
0.326 inches first shoulder and 0.327 inches first shoulder
Shoulder Length
1.015 inches first shoulder and 1.047 inches first shoulder
Thread Diameter
0.3125 inches
Thready Qty Per Inch (tpi)
24
Min. Tensile Strength (psi)
105000 pounds per square inch
Hardness Rating
26.0 rockwell c and 34.0 rockwell c
Shoulder Shape
Round first shoulder
Material
Steel comp 4140
Thread Series Designator
Unf
NSN
5306-00-264-2697
Part Number
10721A
Description
Bolt,shoulder
CAGE
66935

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes thumbscrew.

Part 10721A NSN 5306-00-264-2697

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
04905
FIIG:
A003B0
Concept No.:
App. Key:
BY
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

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:
M
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:
573
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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