Model: HR101V4-10

Close Tolerance Screw

Special Features:

Bearing surface of head to be grooved to 0.323 in. Min 0.325 in. Max dia, 0.050 in. Min. 0.055 in. Max from top of head

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.352 inches and 0.402 inches
Fastener Length
Between 0.987 inches and 1.017 inches
Head Style
Flat countersunk
Head Diameter
Between 0.412 inches and 0.439 inches
Grip Diameter
Between 0.2490 inches and 0.2495 inches
Internal Drive Style
Offset cruciform (torque set)
Thread Diameter
0.250 inches
Grip Length
Between 0.615 inches and 0.635 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
160000 pounds per square inch
Countersink Angle
60.0 degrees
Surface Finish
32.0 microinches grip
Surface Finish
32.0 microinches threads
Material
Titanium alloy uns r54520
Material Specification
Nas 621, 6al-4v assn standard single material response
Thread Series Designator
Unjf
NSN
5305-00-450-5976
Part Number
HR101V4-10
Description
Screw,close Tolerance
CAGE

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Part HR101V4-10 NSN 5305-00-450-5976

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29294
FIIG:
A003B0
Concept No.:
App. Key:
SS
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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
136500
UFC:
68455
LTL:
RATING VARIABLE
LCL:
70.0
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8109900000
  • SITC: 69987
  • End Use: Finished metal shapes
  • NAICS: 331491
  • USDA: 1

Freight Class: Zirconium and articles thereof nesoi

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