Skip to main content
Quick Release Fasteners
my account
site map

If you are looking for a specific part, type in the corresponding part number. Or try our Site Map. If you are unsure of the exact part number, type the first 3 letters or numbers and put an * after it to broaden your search results.


A-Spec Fastening System

These fasteners are common to BeechCraft airplanes and latches on some Piper cowlings along with other industry uses. The design consists of a simple stud, with a cross pin pressed into the shank. The pin must be pressed in after the stud is inserted through the panel hole and removed from the stud prior to removing the fastener from the panel. Most applications use a flare type grommet in the hole to protect it from wear due to vibration. Unlike other fastener styles, this grommet may not require replacement when installing new studs. However, we do carry new grommets in the event that replacement is required.


Each new stud will require a new cross pin and maybe a new grommet. So be sure to add them before checking out, and don't forget about the installation tools. We keep all of these items in stock to make your project go smoothly. If you have any questions or need additional information, please Contact Us.

This drawing is for reference only. The chart below has the stud dash number in the far left column. This is the number that is stamped in the head of the stud. The next column shows the Total Material Thickness range (TMT) of each stud length. The next column shows the B dimension of the stud (blank length). The far right column shows the A dimension for each dash number so you can measure and replace an existing stud. * Please note: A-Spec studs only vary by .010" from size to size so it is important to measure very accurately when using them. Dimensions are in inches. For metric conversion, use this formula: Inches x 25.4 = mm.  mm ÷ 25.4 = Inches.

Reference Information #2 Series A-Spec Studs
Reference Information #5 Series A-Spec Studs
About Quick Release Fasteners

We appreciate the support from everyone that uses Genuine MilSpec Products, and over the years it has been that support which has led to our growth. We will continue to work hard to provide fast, friendly and dependable service that will earn your trust in the future.

All content Copyright 1993 - 2016© MilSpec Products, Inc., All Rights Reserved. Trademarks® referenced are the property of their respective owners and do not indicate affiliation with Quick Release Fasteners or MilSpec.


Contact us
MilSpec Products / Quick Release Fasteners
31537 Long Acres Dr.
Sorrento, FL 32776
352-735-0065 (fax)

MilSpec makes no claims regarding suitability of items for any application. Installer is responsible for proper installation and any regulatory compliance.