---
lang: en
type: Product
record_kind: entity-profile
title: "Boltmark 329 Hex Nut BOL-561 - Specs & Details"
description: "Boltmark 329 Hex Nut BOL-561: Thread Size: 1/4-20; Material: Brass; Nut Type: Lock Nut"
llms_summary: "Boltmark 329 Hex Nut BOL-561. (Greenville, South Carolina, United States). Product. Brand Boltmark. Finish Zinc Plated. Grade Grade 5. Height 0.226 in. Material Brass. Model Number BOL-561. Nut Type Lock Nut. Proof Load 3725 (3,725) lbf. Thread Size 1/4-20. Weight per 100 pcs 0.43 lb. Width Across Flats 0.438 in. Product catalogs. Boltmark 329 Hex Nut BOL-561: Thread Size: 1/4-20; Material: Brass; Nut Type: Lock Nut. canonical profile on Structured Pages"
canonical: "https://structuredpages.com/boltmark-329-hex-nut-bol-561/"
og_image: "https://structuredpages.com/images/industrial-distribution-demo/shared/hex-nuts-v1.webp"
primary_image: "https://structuredpages.com/images/industrial-distribution-demo/shared/hex-nuts-v1.webp"
site: structured-pages
slug: boltmark-329-hex-nut-bol-561
date_created: 2026-08-13
date_modified: 2026-09-13
license: citation-free
entities:
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    role: subject
    slug: boltmark-329-hex-nut-bol-561
    name: Boltmark 329 Hex Nut BOL-561
    type: Product
    profile_url: "https://structuredpages.com/boltmark-329-hex-nut-bol-561/index.md"
---
# Boltmark 329 Hex Nut BOL-561

The Boltmark 329 Hex Nut BOL-561 is a sample hex nuts entry with representative specifications, generated for catalog demonstration purposes.

*Last updated: 2026-09-13*

## Record

- **Title**: [Boltmark 329 Hex Nut BOL-561](https://structuredpages.com/boltmark-329-hex-nut-bol-561/index.md)
- **Place**: Greenville, South Carolina, United States
- **Use case**: Product catalogs
- **Website**: https://www.boltmark.example.com
- **Phone**: (864) 555-8623
- **Email**: sales@boltmark.example.com
- **Contact address**: Greenville, South Carolina, United States
- **Coordinates**: 34.8526, -82.394
- **CTA**: [Get a Quote](mailto:info@structuredpages.com?subject=Structured%20Pages%20product%20catalog%20inquiry)
- **CTA note**: Ask about publishing a catalog like this with Structured Pages - not a quote on this SKU.
- **Part / Model Number**: BOL-561

### Description

The Boltmark 329 Hex Nut BOL-561 is a sample hex nuts entry with representative specifications, generated for catalog demonstration purposes. Representative specifications for this hex nuts entry include Thread Size: 1/4-20; Material: Brass; Nut Type: Lock Nut. This entry illustrates how a real product in this category would appear once structured into Structured Pages' catalog format, with distinct fields for filtering, comparison, and search. This is placeholder demonstration data, not a real, purchasable product.

### Categories

- hex nuts

### Attributes

| Property | Value |
| --- | --- |
| Brand | Boltmark |
| Finish | Zinc Plated |
| Grade | Grade 5 |
| Height | 0.226 in |
| Material | Brass |
| Nut Type | Lock Nut |
| Proof Load | 3725 (3,725) lbf |
| Thread Size | 1/4-20 |
| Weight per 100 pcs | 0.43 lb |
| Width Across Flats | 0.438 in |

## Downloads

- [Specification Sheet](/files/industrial-distribution-demo/shared/specification-sheet.pdf)
- [Certification](/files/industrial-distribution-demo/shared/certification.pdf)
- [Application Notes](/files/industrial-distribution-demo/shared/application-notes.pdf)
- [Installation & Maintenance Guide](/files/industrial-distribution-demo/shared/installation-maintenance-guide.pdf)

## Frequently asked questions

### What are the key specifications of the Boltmark 329 Hex Nut BOL-561?

Published figures list Thread Size: 1/4-20; Material: Brass; Nut Type: Lock Nut.

### What is the thread size of this item?

The thread size is 1/4-20.

### Is the Boltmark 329 Hex Nut BOL-561 suitable for standard fasteners applications?

Yes - this entry represents a typical hex nuts product for this category; a real catalog entry would confirm exact fitment and compliance details.