SIC 3451 — Screw Machine Products
Description & Classification
SIC code 3451 representing 'Screw Machine Products' is an industry category in the Standard Industrial Classification (SIC) system under U.S. OSHA and Federal procurement registers.
Modern NAICS Crosswalk
Trace the modern equivalent classifications in the 2022 North American Industry Classification System (NAICS) database:
- NAICS 332721 - Precision Turned Product Manufacturing (via SIC1987:3451→NAICS1997:332721→2002:332721→2007:332721→2012:332721→2017:332721→2022:332721)
Classification Details
| SIC Code | 3451 |
|---|---|
| Industry Title | Screw Machine Products |
| Division | Division D: Manufacturing |
| Major Group | Major Group 34: Fabricated Metal Products, Except Machinery and Transportation Equipment |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 3451:
- SIC Codes Complete Compliance Guide — Detailed history and active legal applications of the SIC classification framework.
- Why Legacy SIC Codes Persist Guide — How credit systems and the SEC still rely on SIC metadata.
- SIC ↔ NAICS Crosswalk Tool — Trace industrial code conversions dynamically.
- SIC Major Group 34 Hub — View other legacy industries in this business division.
Related Industries in Major Group 34
Frequently Asked Questions (FAQ)
What industry does SIC code 3451 represent?
SIC 3451 is 'Screw Machine Products', a 4-digit Standard Industrial Classification (SIC) code under Major Group 34: Fabricated Metal Products, Except Machinery and Transportation Equipment (Division D: Manufacturing); it maps to modern 2022 NAICS code(s): 332721 (Precision Turned Product Manufacturing).
What is the modern 2022 NAICS mapping for SIC 3451?
SIC code 3451 maps to modern NAICS codes: 332721 - Precision Turned Product Manufacturing.