--- product_id: 18936741 title: "Prime-Line J 4516 Aluminum Diecast, Flush Mount Extension Bolt (Single Pack)" brand: "prime-line" price: "KD 9.20" currency: KWD in_stock: true reviews_count: 12 category: "Prime Line" url: https://www.desertcart.com.kw/products/18936741-prime-line-j-4516-aluminum-diecast-flush-mount-extension-bolt store_origin: KW region: Kuwait --- # Flush mount with included guide 8-10 inch adjustable bolt Diecast aluminum durability Prime-Line J 4516 Aluminum Diecast, Flush Mount Extension Bolt (Single Pack) **Brand:** prime-line **Price:** KD 9.20 **Availability:** ✅ In Stock ## Summary > 🔐 Secure your space with sleek precision—because your doors deserve the best. ## Quick Answers - **What is this?** Prime-Line J 4516 Aluminum Diecast, Flush Mount Extension Bolt (Single Pack) by prime-line - **How much does it cost?** KD 9.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/18936741-prime-line-j-4516-aluminum-diecast-flush-mount-extension-bolt) ## Best For - prime-line enthusiasts ## Why This Product - Trusted prime-line brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Nylon-Tipped Bolt:** Smooth operation and reduced wear with a durable nylon tip that protects your door frame. - • **Flush Mount Design:** Sleek, low-profile installation that blends effortlessly with door aesthetics while maximizing security. - • **Complete Installation Kit:** Includes fasteners and flush bolt guide for hassle-free setup—get professional-grade security in one pack. - • **Precision Adjustable Length:** Custom fit your commercial doors with an 8 to 10 inch extension bolt for seamless security. - • **Robust Diecast Aluminum Build:** Engineered for strength and corrosion resistance, ensuring long-lasting performance in demanding environments. ## Overview The Prime-Line J 4516 Flush Mount Extension Bolt is a high-grade, diecast aluminum security solution designed for commercial aluminum or steel doors. Featuring an adjustable 8 to 10 inch bolt length, a flush lever for discreet operation, and a nylon tip for smooth engagement, it comes complete with fasteners and a flush bolt guide for easy installation. Built to withstand heavy use with a Grade 8 hardness rating, this bolt combines durability and style for professional-grade door security. ## Description This is an aluminum finish flush extension bolt commonly used on commercial aluminum or steel doors. The unit fits into the door at the bottom, or the top, with a flush lever that operates the extension bolt up or down. The extension bolt rod is adjustable from 8 to 10 inch and has a nylon tip treaded onto it. Fasteners and the flush bolt guide are included. Review: Great Quality and Fast Weekend Shipping - I usually order wholesale parts when I need them, but this Prime-Line J 4516 Aluminum Diecast Flush Mount Extension Bolt was just as good in quality and arrived much faster when ordered on the weekend. The build is sturdy, and it functions just as expected. If you need a reliable extension bolt and don’t want to wait for a bulk order, this is a great option. I’d definitely order again when in a pinch. Review: Fit perfect - Nice fit and working great ## Features - Used for locking commercial aluminum or steel doors - 8 inch to 10 inch adjustable extension bolt - Flush bolt guide included - Diecast construction, aluminum finish - Nylon tip ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00DRZL1LC | | Best Sellers Rank | #84,456 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #179 in Door Latches & Bolts | | Brand | PRIME-LINE | | Color | Aluminum | | Customer Reviews | 4.6 out of 5 stars 178 Reviews | | Exterior Finish | Aluminum | | Fastener Type | Screw | | Finish Types | Aluminum | | Global Trade Identification Number | 00049793045164 | | Grade Rating | Grade 8 | | Head Style | Flat | | Head Type | Flat | | Item Dimensions | 1 x 3.81 x 17.44 inches | | Item Hardness | Grade 8 | | Manufacturer | Prime-Line Products | | Manufacturer Grade | Grade 2 | | Material | Diecast | | Material Type | Diecast | | Metal Type | Diecast | | Model | J 4516 | | Number Of Items | 1 | | Number of Pieces | 1 | | Part Number | J 4516 | | Screw Head Style | Flat | | Screw Point Style | Flush | | Set Screw Thread Type | Unified National Coarse | | Size Name | 1 Pack | | Thread Class | 1A | | Thread Coverage | Unthreaded | | Thread Size | 1/4"-16 UNC | | Thread Style | Right Hand | | Thread Type | Unc | | UPC | 049793045164 | | Unit Count | 1.0 Count | | Warranty Description | Goods are warranted against manufacturing defects for 1 year. | ## Product Details - **Material:** Diecast - **Grade Rating:** Grade 8 - **Exterior Finish:** Aluminum - **Manufacturer Grade:** Grade 2 - **Head Style:** Flat ## Images ![Prime-Line J 4516 Aluminum Diecast, Flush Mount Extension Bolt (Single Pack) - Image 1](https://m.media-amazon.com/images/I/41cSxfIe6fL.jpg) ![Prime-Line J 4516 Aluminum Diecast, Flush Mount Extension Bolt (Single Pack) - Image 2](https://m.media-amazon.com/images/I/51Sgun8QbtL.jpg) ## Questions & Answers **Q: what is the offset? It's either 1/8", 3/16" or 1/4". the offset is the distance of the face of the screw mount to the face of the front that's flush** A: 1/8” **Q: What is the size of the face plate?** A: The faceplate is 4 1/4"L. Please review the dimensions under the photo at the top left of webpage and compare to your original. **Q: Can I alter the 8" extension bolt if it is too long?** A: If you wish to alter this you may, however that will void the warranty. **Q: Can you get it with a 16" rod** A: Prime-Line does not have one the length yo are needing. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Quality and Fast Weekend Shipping *by K***E on February 15, 2025* I usually order wholesale parts when I need them, but this Prime-Line J 4516 Aluminum Diecast Flush Mount Extension Bolt was just as good in quality and arrived much faster when ordered on the weekend. The build is sturdy, and it functions just as expected. If you need a reliable extension bolt and don’t want to wait for a bulk order, this is a great option. I’d definitely order again when in a pinch. ### ⭐⭐⭐⭐⭐ Fit perfect *by D***. on April 9, 2024* Nice fit and working great ### ⭐⭐⭐⭐⭐ Works better than the parking lot and don’t have to worry about it no more *by T***K on July 1, 2025* The door lock thing works great slide lock whatever you call it. The fun part is getting the old one out that was broken. ## Frequently Bought Together - Prime-Line J 4516 Aluminum Diecast, Flush Mount Extension Bolt (Single Pack) - C.R. LAURENCE DL2210SG CRL Standard Flush Bolt Guide - Prime-Line J 4532 Bronzed Diecast, Extension Bolt, Flush Mount (Single Pack) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.kw/products/18936741-prime-line-j-4516-aluminum-diecast-flush-mount-extension-bolt](https://www.desertcart.com.kw/products/18936741-prime-line-j-4516-aluminum-diecast-flush-mount-extension-bolt) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-19*