Model: B1821BH025C113D

Hexagon Head Cap Screw

Special Features:

Drilled head hole diameter: 0.0605 in. Min. And 0.0685 in. Max. Diameter

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.750 inches and 0.938 inches
Fastener Length
Between 1.063 inches and 1.125 inches
Head Style
Hexagon
Head Height
Between 0.150 inches and 0.163 inches
Width Between Flats
Between 0.4280 inches and 0.4375 inches
Hole Diameter
Between 0.0605 inches and 0.0685 inches
Thread Diameter
0.250 inches
Hole Quantity
1
Hole Type
Drilled
Features Provided
Finished head
Thready Qty Per Inch (tpi)
20
Min. Tensile Strength (psi)
150000 pounds per square inch
Hardness Rating
32.0 rockwell c fastener and 38.0 rockwell c fastener
Minimum Yield Strength
120000 pounds per square inch
Hole Configuration Style
Hexagon flats
Material
Steel
Material Specification
Sae j429 grade 8 assn standard single material response or astm a354 grade bd assn standard single material response
Surface Treatment
Zinc fastener and chromate fastener
Surface Treatment Specification
Astm b633 type 2 sc 3 assn standard single treatment response fastener
Thread Series Designator
Unc
NSN
5305-01-466-7402
Part Number
B1821BH025C113D
Description
Screw,cap,hexagon Head
CAGE
80204

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 B1821BH025C113D NSN 5305-01-466-7402

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

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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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