Model: ASTMB18.2.1

Lag Screw

Properties:

Fastener Length
1.250 inches
Head Style
Hexagon
Head Height
Between 0.150 inches and 0.188 inches
Width Between Flats
Between 0.425 inches and 0.437 inches
Shoulder Diameter
0.237 inches first shoulder and 0.260 inches first shoulder
Shoulder Length
0.094 inches first shoulder
Min. Tensile Strength (psi)
55000 pounds per square inch
Hardness Rating
60.0 rockwell b
Nonmachine Thread Style
Gimlet point (type a, ab or ba)
Nonmachine Thread Diameter
0.250 inches
Shoulder Shape
Round first shoulder
Material
Stainless steel
Material Specification
Ff-b-561, gr b federal specification single material response
Surface Treatment
Zinc
Surface Treatment Specification
Astm a153-60 assn standard single treatment response
Nondefinitive Specification/std Data
1 type and 1 style and b grade
NSN
5305-00-177-5472
Part Number
ASTMB18.2.1
Description
Screw,lag
CAGE
81346

An externally threaded fastener having a square or hexagon head and with a continuous thread (wood screw type or fetter type) extending from a gimlet or cone point for a distance of slightly more than one-half the length of the screw.

Part ASTMB18.2.1 NSN 5305-00-177-5472

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
36433
FIIG:
A003B0
Concept No.:
App. Key:
BQ
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:
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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