NSN 5305-01-266-8393
High Torque Screw
2thd hole in top of head 0.138-32 unjc-3b; threaded hole 0.300 in. Min 0.345 in. Max dp; counterbore 0.145 in. Min lg; 0.150 in. Max lg; 0.060 in. Wide in. Wide in unthreaded shank; distant from top of head to beginning of injection port 0.210.
Manufacturer part number HT4075D4-8-21 for national stock number 5305012668393.
Datasheet
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Product description
Close Tolerance Screw NSN 5305-01-266-8393.
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MPN or Model
HT4075D4-8-21
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
NMF (National Motor Freight)
093486 - Bolts, Nuts Or Screws, NOI (sub 3) -
Unit Weight (Est.)
0.1 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.506 inches and 0.556 inches -
Fastener Length
Between 1.016 inches and 1.046 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.497 inches and 0.507 inches -
Grip Diameter
Between 0.2490 inches and 0.2495 inches -
Internal Drive Style
High-torque -
Thread Diameter
0.250 inches -
Grip Length
Between 0.490 inches and 0.510 inches -
Thready Qty Per Inch (tpi)
28 -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Material
Steel comp xm-13 -
Material Specification
Ams 5629 assn standard single material response -
Surface Treatment
Passivate -
Thread Series Designator
Unjf
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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.
![Mechanic Bill explains High Torque Screw](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5305-01-266-8393 close tolerance screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
HT4075D4-8-21 | Arconic Global Fasteners & Rings, |
3M1034C4D8-21 | Boeing Company, The |
HT4075D4-8-21 | Fastener Innovation Technology, Inc. |
11839C4D8-21 | Reid Products Inc. |
HT4075D4-8-21 | West Coast Aerospace Inc |
HT4075D4-8-21 | Hi-shear Corporation |
HT4075D4-8-21 | Sps Technologies, Llc |
3M1034C4D8-21 | Alcoa Global Fasteners, Inc. |
HT4075D4-8-21 | Lisi Aerospace Canada Corp |
HT4075D4-8-21 | Sps Technologies, Llc |
HT4075D4-8-21 | Sps Technologies Inc |
Stock Check
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