NSI Industries JFM77 - 5/16-18 x 1-1/2 Flat Head Slotted Machine Screw,Steel, Zinc, U/M 100
NSI Industries

JFM77

Alternate Item Number: 81898

UPC: 639720818987

Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The NSi Industries JFM77 5/16-18 x 1-1/2 Flat Head Slotted Machine Screw is a precision-engineered fastener designed for industrial and mechanical assemblies requiring secure, flush-mounted fastening. Manufactured from durable low-carbon steel with a zinc plating for corrosion resistance, this screw meets ASTM A153 standards for durability in harsh environments. The 5/16-18 thread size provides strong engagement in metal substrates, while the 1.5-inch length ensures adequate grip in thick materials. The flat head with slotted drive type allows for countersunk installation, reducing protrusion and minimizing interference with adjacent components. Packaged in bulk units of 100, the JFM77 is ideal for high-volume production runs, maintenance operations, and OEM applications where consistency and reliability are critical. Compatible with standard slotted screwdrivers, this screw eliminates the need for specialized tooling while delivering consistent torque application. Trust NSi Industries for fasteners that meet strict quality control standards for dimensional accuracy and plating integrity.
  • 5/16-18 thread size for strong metal engagement
  • 1.5-inch length provides secure grip in thick materials
  • Flat head with slotted drive for countersunk installation
  • Zinc-plated steel construction resists corrosion
  • Bulk packaging of 100 screws per unit

Specifications

Head Type
Flat
Length
1-1/2 in
Material
Zinc
Material Quality
Zinc
Size
5/16-18 IN
Type
Machine Screw
Package Dimensions (L x W x H)
3 IN x 3 IN x 4.57 IN
Package Dimensions (L x W x H)
7.62 cm x 7.62 cm x 11.6078 cm
Package Weight (Imperial)
2.730 L
Package Weight (Metric)
1.238 kg
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JTRM75

Round Head Tri-Drive Machine Screw, #10-32 Size, 1-1/2 in. length, Zinc finish, Slotted/Phillips/Square drive type, 100 per pack
Machine screws sized 8-32 x 1-1/2 in. The sheet identifies them as flat head, Phillips drive, with a zinc plated finish. They are supplied in a jar.

50325BFG

Machine screws sized 8-32 x 1-1/2 in. The sheet identifies them as flat head, Phillips drive, with a zinc plated finish. They are supplied in a jar.
Oval Head Spanner Machine Screw, Stainless Steel material, #6-32 Size, 1 in. length, 50 per pack

SPT300

Oval Head Spanner Machine Screw, Stainless Steel material, #6-32 Size, 1 in. length, 50 per pack
Machine Screw, #6-32 Size, 370 piece(s), Steel material, 1 per pack, including a(n) #6-32 Flat Head Slotted Drive Machine Screw and (30) 3 in. Machine Screw and (75) 1-1/4 in. Machine Screw, 50 x 1-1/2 in. Machine Screw and (40) 2 in. Machine Screw and (100) 3/4 in. Machine Screw, (75) 1 in. Machine Screw

FMK632

Machine Screw, #6-32 Size, 370 piece(s), Steel material, 1 per pack, including a(n) #6-32 Flat Head Slotted Drive Machine Screw and (30) 3 in. Machine Screw and (75) 1-1/4 in. Machine Screw, 50 x 1-1/2 in. Machine Screw and (40) 2 in. Machine Screw and (100) 3/4 in. Machine Screw, (75) 1 in. Machine Screw
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SPT400

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Machine Screw Kit, 1/4-20 in. Size, 124 piece(s), Steel material, Round head, Phillips/Slotted drive type, Zinc finish, Plastic box material, including a(n) (35) 1/2 in. Machine Screw, (30) 3/4 in. Machine Screw, (20) 1 in. Machine Screw, (15) 1-1/4 in. Machine Screw, (12) 1-1/2 in. Machine Screw,(12) 2 in. Machine Screw

RMK1420

Machine Screw Kit, 1/4-20 in. Size, 124 piece(s), Steel material, Round head, Phillips/Slotted drive type, Zinc finish, Plastic box material, including a(n) (35) 1/2 in. Machine Screw, (30) 3/4 in. Machine Screw, (20) 1 in. Machine Screw, (15) 1-1/4 in. Machine Screw, (12) 1-1/2 in. Machine Screw,(12) 2 in. Machine Screw
Machine Screw Kit, #10-32 Size, 245 piece(s), Steel material, Round head, Phillips/Slotted drive type, Zinc finish, Plastic box material, including a(n) (75) 1/2 in. Machine Screw, (50) 3/4 in. Machine Screw, (40) 1 in. Machine Screw, (30) 1-1/4 in. Machine Screw, (25) 1-1/2 in. Machine Screw,(25) 2 in. Machine Screw

RMK1032

Machine Screw Kit, #10-32 Size, 245 piece(s), Steel material, Round head, Phillips/Slotted drive type, Zinc finish, Plastic box material, including a(n) (75) 1/2 in. Machine Screw, (50) 3/4 in. Machine Screw, (40) 1 in. Machine Screw, (30) 1-1/4 in. Machine Screw, (25) 1-1/2 in. Machine Screw,(25) 2 in. Machine Screw
3/8-16 x 6 Round Hd Combo Machine Scew Zinc

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3/8-16 x 6 Round Hd Combo Machine Scew Zinc

Frequently Asked Questions

What type of screws does this document describe?

This document describes Flat Head Machine Screws. They are available in both Steel and Stainless Steel materials.

Which product series are covered by this specification?

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

What type of screws does this document describe?

This document describes Flat Head Machine Screws. They are available in both Steel and Stainless Steel materials.

Which product series are covered by this specification?

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

What type of screws does this document describe?

This document describes Flat Head Machine Screws. They are available in both Steel and Stainless Steel materials.

Which product series are covered by this specification?

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

What type of screws does this document describe?

This document describes Flat Head Machine Screws. They are available in both Steel and Stainless Steel materials.

Which product series are covered by this specification?

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

What type of screws does this document describe?

This document describes Flat Head Machine Screws. They are available in both Steel and Stainless Steel materials.

Which product series are covered by this specification?

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

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