---
product_id: 35451380
title: "16.610 UT Micro Railbolt"
brand: "zipbolt"
price: "$21.89"
currency: USD
in_stock: true
category: "Zipbolt"
url: https://www.desertcart.us/products/35451380-16-610-ut-micro-railbolt
store_origin: US
region: United States of America
---

# Hidden low-profile rail bolt fastener Patented gear-driven mechanism Complete 2-pack with T25 Torx bit 16.610 UT Micro Railbolt

**Brand:** zipbolt
**Price:** $21.89
**Availability:** ✅ In Stock

## Summary

> ⚙️ Connect with confidence—where innovation meets seamless style!

## Quick Answers

- **What is this?** 16.610 UT Micro Railbolt by zipbolt
- **How much does it cost?** $21.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/35451380-16-610-ut-micro-railbolt)

## Best For

- zipbolt enthusiasts

## Why This Product

- Trusted zipbolt brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from premium steel and zinc alloy, engineered for both residential and commercial-grade stability.
- • **All-in-One Pro Kit:** Includes 2 micro rail bolts, wood plugs, and a T25 Torx bit—everything you need for a flawless handrail connection.
- • **Invisible Strength:** Low-profile, hidden fasteners maintain your staircase’s clean, modern aesthetic without compromising durability.
- • **Engineered for Millennial Makers:** Designed for fast, reliable assembly with common tools—perfect for professionals who value efficiency and style.
- • **Effortless Precision Installation:** Zipbolt’s patented gear-driven system cuts installation time, eliminating nuts and washers for a sleek, hassle-free fit.

## Overview

The Zipbolt UT Micro Railbolt 2-pack is a professional-grade, low-profile handrail connector kit featuring a patented gear-driven tightening system. Designed for quick, tool-friendly installation, it eliminates traditional nuts and washers with a unique open channel housing. Made from durable steel and zinc alloy, this kit includes all necessary components for secure, hidden fastening of small handrails to staircase fittings, ideal for both residential and commercial applications.

## Description

Zipbolt UT Micro Railbolt, Small Handrail to Fittings, 1 x 2-Pack, 16.610 | Low profile handrail connector kit, Hidden rail bolt fastener, Wood staircase railing hardware, Gear-driven tightening system: desertcart.com: Tools & Home Improvement

## Features

- EASILY CONNECT LOW PROFILE HANDRAILS TO STAIRCASE FITTINGS – Attaching small or low profile handrails to easings, turnouts, newel posts, or other staircase fittings is no longer a hassle. The patented UT (Universal Technology) gear-driven mechanism speeds up handrail installation to staircase fittings by eliminating the tedious steps of conventional techniques. The railbolt's open channel allows the housing to be dropped directly onto the shaft, eliminating the need for cumbersome nuts and washers.
- FAST INSTALLATION – Perfect for quickly connecting stairway components. Install the screw shaft in the rail using a wrench or optional Zipbolt 40.500 6mm deep socket, place the housing gear inside the railing and tighten with the included T25 Torx bit using a screwdriver or cordless drill. NOTE: Impact drivers should not be used when tightening the gear housing.
- A COMPLETE PACKAGE – The package includes everything you need to attach a handrail to various stairway fittings. It contains 2 micro rail bolts, 2 wood plugs, and 1 T25 Torx bit. Use the included instructions to guide yourself through the installation process.
- DURABLE CONSTRUCTION – Made with quality steel for maximum durability, these Zipbolts were created by professionals for residential and commercial use. They provide a solid and stable connection without the frustration of traditional methods.
- INNOVATIVE PATENTED DESIGN – Zipbolt offers a distinctive patented gear drive that outperforms all others in terms of functionality. The innovative UT gear-driven mechanism eliminates the issues associated with conventional techniques of joining staircase components. The railbolt housing's distinctive open channel allows the housing to be dropped directly on the shaft, eliminating the need for nuts and washers.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01M07SOTX |
| Best Sellers Rank | #208,402 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #722 in Staircase Parts |
| Brand | Zipbolt |
| Color | Metallic |
| Compatible Groove Diameter | 16.61 millimeters |
| Customer Reviews | 4.0 4.0 out of 5 stars (78) |
| Fastener Type | Screw/Bolt |
| Finish Types | Black Oxide |
| Grade Rating | Class 8.8 |
| Item Diameter | 10 millimeters |
| Item Dimensions | 6 x 0.5 x 4 inches |
| Item Shape | Hexagonal |
| Item Weight | 2.24 ounces |
| Manufacturer | Zipbolt |
| Material Type | Steel, Zinc, Alloy, Wood |
| Model | 16.61 |
| Number Of Items | 2 |
| Number of Pieces | 2 |
| Outside Diameter | 16.6 millimeters |
| Part Number | 16.61 |
| Screw Head Style | Hex |
| Set Name | 2 Pack |
| Size Name | M16.610 |
| Thread Size | 16.61 millimeters x 16.61 millimeters |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Zipbolt
- **Color:** Metallic
- **Item dimensions L x W x H:** 6 x 0.5 x 4 inches
- **Material:** Steel, Zinc, Alloy, Wood
- **Size:** M16.610

## Images

![16.610 UT Micro Railbolt - Image 1](https://m.media-amazon.com/images/I/71KrE+-fpGL.jpg)

## Questions & Answers

**Q: Will these mini drive nuts work on the original angle rail studs. My railing is skinny**
A: Really good question, and yes the small head works on the angled bolt.

**Q: Will micro zip bolts work on a (2) 45 degree cuts (instead of a 90 degree cut) on stair rail return?**
A: Yes that’s how I used it

## Frequently Bought Together

- Zipbolt 16.610 UT Micro Railbolt – Connect Low Profile Handrails to Staircase Fittings and Newels, Fast, Easy Residential and Commercial Installation, New Construction and Remodels — 1 Double Pack
- Zipbolt 11.560 Angled Railbolt — Angled Staircase Handrail to Newel Post Connector for Lower Connection, Residential and Commercial Installation, New Construction and Remodels

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**Shop now:** [https://www.desertcart.us/products/35451380-16-610-ut-micro-railbolt](https://www.desertcart.us/products/35451380-16-610-ut-micro-railbolt)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-12*