Model: A51M42524-11

Shoulder Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.312 inches
Fastener Length
Between 1.923 inches and 1.943 inches
Head Style
Flat chamfer
Head Diameter
0.500 inches
Head Height
0.100 inches
Shoulder Diameter
0.281 inches first shoulder and 0.282 inches first shoulder
Shoulder Length
1.611 inches first shoulder and 1.631 inches first shoulder
Shank Unthreaded Hole Diameter
0.071 inches first hole and 0.076 inches first hole
Internal Drive Style
Slot
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Hardness Rating
46.0 rockwell c and 49.0 rockwell c
Distance From Head Largest Bearing Surface To Shank Hole Center
1.823 inches first hole and 1.843 inches first hole
Shoulder Shape
Round first shoulder
Material
Steel
Material Specification
G-1010 fscm 26512 mfr ref single material response
Surface Treatment
Cadmium threads
Surface Treatment
Cadmium grip and chromium grip
Surface Treatment Specification
Mil-c-8837 type 2 cl 1 1 military specification single treatment response and qq-c-320 federal specification single treatment response
Test Data Document
81349-mil-i-6868 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unjf
NSN
5305-00-973-1048
Part Number
A51M42524-11
Description
Screw,shoulder
CAGE
61174

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 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 designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

Part A51M42524-11 NSN 5305-00-973-1048

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22846
FIIG:
A003B0
Concept No.:
App. Key:
SL
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:
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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