NSI Industries JRM71 - 5/16-18 x 1-1/4 Round Head Combo Drive Machine Screw Steel Zinc
NSI Industries

JRM71

Alternate Item Number: 83971

UPC: 639720839715


Documents & Media
Specification Sheet

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Minimum Qty: 100

Multiplier: 100

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Overview

The NSi Industries JRM71 is a 5/16-18 x 1-1/4 inch round head combo drive machine screw, manufactured in the USA from durable steel with a zinc plating for corrosion resistance. Its 5/16-18 thread size and 1-1/4 inch length make it ideal for securing components in pre-tapped holes or with nuts. The combo drive (Phillips and slotted) provides installation versatility, allowing use with either screwdriver type. This machine screw is designed for industrial and machinery applications, ensuring reliable fastening in assembly, maintenance, and manufacturing processes. Key specifications include: Thread size: 5/16-18 (coarse), Length: 1.25 inches, Material: Steel with zinc plating for corrosion resistance, Drive type: Combo (Phillips #2 and slotted), Head type: Round with finished appearance. Suitable for use in machinery, equipment, and structural assemblies where a secure, corrosion-resistant fastener is required. Part of NSi Industries' comprehensive fastener range, this screw delivers consistent performance in demanding environments.
  • Thread size: 5/16-18 (coarse)
  • Length: 1.25 inches
  • Material: Steel with zinc plating for corrosion resistance
  • Drive type: Combo (Phillips #2 and slotted)
  • Head type: Round with finished appearance
  • Country of Origin: USA

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Drive Type
Slotted/Phillips
Drive Type
Phillips;Slotted
Finish
Zink Chromate
Head Type
Round
Length
1-1/4 in
Material
Steel
Material
Steel Zinc Plated
Series
JRM71
Size
5/16-18 IN
Special Features
Features: Two Drives in One Head
Type
Combo 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)
3.110 L
Package Weight (Metric)
1.411 kg
1/4-20 x 1-1/4 Truss Hd Phillips Machine Screw Zinc

JTMP102

1/4-20 x 1-1/4 Truss Hd Phillips Machine Screw Zinc
Machine screw with a 10-32 thread size and 1-1/4 in. length. It is made of steel with a zinc plated finish and a round head. The screw has a slotted/Phillips combo drive and is intended for use with a pre-tapped hole or with a nut.

52821J

Machine screw with a 10-32 thread size and 1-1/4 in. length. It is made of steel with a zinc plated finish and a round head. The screw has a slotted/Phillips combo drive and is intended for use with a pre-tapped hole or with a nut.
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Frequently Asked Questions

What product type is covered by this specification sheet?

This specification sheet applies to Round Head Machine Screws.

What materials are available for these machine screws?

These machine screws are available in Steel, Stainless Steel, Brass, and Silicone Bronze.

Which machine screw series does this specification sheet apply to?

This sheet applies to RM, JRM (excluding JRMB and JRMN), SRM, and RSB series screws.

Are all JRM series screws covered by this document?

No, the JRMB and JRMN series JRM screws are excluded from this specification sheet.

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