NSI Industries JFM46 - Machine Screw, Steel material, #4-40 Size, 3/4 in. length, Flat head, Zinc finish, Slotted drive type, 100 per pack
NSI Industries

JFM46

Alternate Item Number: 83846

UPC: 639720838466

Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The NSi Industries JFM46 #4-40 machine screw is a precision-engineered steel fastener designed for industrial assembly applications requiring reliable, corrosion-resistant fastening. Constructed from durable steel with a zinc finish, this screw provides excellent resistance to rust and oxidation, making it ideal for use in harsh or outdoor environments where moisture exposure is a concern. The #4-40 thread size ensures compatibility with standard tapped holes and mating components, while the 3/4-inch length offers sufficient engagement for secure attachment in thin materials or precision assemblies. The flat head design allows for a flush surface finish, reducing protrusion and minimizing interference with adjacent components. The slotted drive type ensures compatibility with standard flat-head screwdrivers, providing straightforward installation and removal without specialized tooling. Packaged in quantities of 100, the JFM46 is optimized for bulk procurement, reducing per-unit costs for large-scale projects or repetitive assembly tasks. Common applications include machinery assembly, electronics enclosures, HVAC systems, automotive components, and general industrial fabrication. The zinc finish meets ASTM B633 specifications for corrosion resistance, ensuring long-term performance in both indoor and outdoor settings. Each screw is manufactured to consistent tolerances for reliable thread engagement and dimensional accuracy. For projects requiring bulk fasteners with verified quality and traceability, the JFM46 delivers a cost-effective solution without compromising on performance or durability. Trust NSi Industries, a U.S.-based manufacturer, for precision fasteners that meet rigorous industry standards.
  • Steel construction with zinc finish for corrosion resistance
  • #4-40 thread size with 3/4" length for precise fastening
  • Flat head design for flush surface mounting
  • Slotted drive type for compatibility with standard screwdrivers
  • Packaged 100 per pack for bulk applications

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Drive Type
Slotted
Finish
Zinc
Head Type
Flat
Length
0.75 IN
Material
Steel
Size
#4-40
Type
Machine Screw
Package Dimensions (L x W x H)
3 IN x 3 IN x 2.15 IN
Package Dimensions (L x W x H)
7.62 cm x 7.62 cm x 5.461 cm
Package Weight (Imperial)
0.223 L
Package Weight (Metric)
0.101 kg
Truss Head Receptacle and Wiring Devices Screw, Steel material, #6-32 Size, 3/4 in. length, Lead Point, Zinc Plated finish, Phillips/Slotted drive type, 100 per pack

TM81LP

Truss Head Receptacle and Wiring Devices Screw, Steel material, #6-32 Size, 3/4 in. length, Lead Point, Zinc Plated finish, Phillips/Slotted drive type, 100 per pack
Machine screw with a round head and combo slotted/Phillips drive. It is made of steel with a zinc plated finish. The screw size is 10-24 x 3/4 in, with a 0.750 in length, 24 threads per inch, and a #2 Phillips driver size. It has a 0.346 in head diameter and 0.130 in head height.

52612J

Machine screw with a round head and combo slotted/Phillips drive. It is made of steel with a zinc plated finish. The screw size is 10-24 x 3/4 in, with a 0.750 in length, 24 threads per inch, and a #2 Phillips driver size. It has a 0.346 in head diameter and 0.130 in head height.

Frequently Asked Questions

What product type is covered by this specification?

This specification sheet applies to Flat Head Machine Screws.

What materials are these machine screws made from?

The Flat Head Machine Screws are available in Steel and Stainless Steel.

Which series of screws does this document apply to?

This document applies to Flat Head Machine Screws in the FM and FMP series.

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