Standard Screw Hole Sizes For 1911 Grips

The size of screw holes in 1911 grips is a topic of interest for gun enthusiasts, with varying opinions on the best approach to ensure a secure fit. Some advocate for drilling holes with a 15/64 drill bit and then using a 9/32 bit for the bottom portion of the hole, while others suggest using a 3/32 Hex Key for easy installation. It is important to note that modifications to firearms should only be performed by those with the appropriate knowledge and skills to ensure safety.

Grip screw threads for Norincos are .150-50 NS-2

The grip screw threads for Norincos are ".150-50 NS-2". This is a unique thread size, and while it may seem odd, it is a standard size for 1911 grip screw threads. The grip screw bushings' exterior threads are metric.

The " .150-50 NS-2" size is not the standard for all 1911 grip screw threads. Notably, Chinese-built guns, such as Norincos, and possibly Filipino-built guns, use a different standard.

The " .150-50 NS-2" size translates to a 4mm thread body, 6mm length, and a .50 pitch thread. The exact measurements are .255 inches in length and .145 inches in outer diameter. These screws are not metric and are instead measured using the imperial system.

If you are looking to remove your 1911 grip screw bushings, you can use a .150″, 50 tpi standard internal tap designed specifically for 1911 grip screw bushings. This will help you remove the bushings if they have been stripped.

Additionally, if you are seeking longer screws for your 1911, you may want to consider buying an extra set of grip screw bushings and drilling out two to allow a #8 screw (.164" diameter) or a #10 (.190") to pass through them. You can then drill and tap the other two to accept #8-32 or #10-32 threads. This will give you longer screws that pass all the way through from the left panel to the right panel of your 1911.

Chinese-built guns use metric exterior grip screw bushing threads

The grip screw bushing threads on Chinese-built guns are metric. This is in contrast to the grip screw threads on most 1911s, which are "".150"-50 NS-2" and not metric. The exception is the Chinese-built guns, which use metric exterior grip screw bushing threads.

When replacing grip screws, it is important to note that the bushings are metric, so standard threaded 1911 screws won't work. The bushings will need to be replaced. However, if you are only replacing the grip screws and not the bushings, there is no need to change the bushings unless you are using slim grips or the current bushings are stripped.

Some people have reported success in replacing the original bushings with standard 1911 bushings, allowing them to use any type of grip screw. Others have noted that the grip screw threads for Norincos are the same as the original specification, but the grip screw bushing's exterior threads are metric.

It is worth noting that grip screw threads and bushings on some GSG 1911s are also metric. In some cases, people have been able to replace the original bushings with standard 1911 bushings, but there are reports of the metric threads on the GSG 1911s being both on the grip screws and bushings, requiring metric bushings and screws.

Kimber 1911 grip bushings and screws come in black and stainless steel hex head options

The Kimber 1911 grip bushings and screws are available in two distinct colours: black and stainless steel. Both options feature a hex head design and are sold in sets of four. The screws use a 3/32" Allen wrench, which is standard for this type of application.

The black hex head grip screws and bushings from Kimber provide a subtle and sleek look for your 1911 pistol. This option is ideal if you prefer a more discreet aesthetic for your firearm. The black colour blends in well with most pistol designs and can give your gun a modern tactical appearance.

On the other hand, the stainless steel hex head grip screws and bushings offer a classic and elegant look. Stainless steel has a natural shine that adds a touch of sophistication to your 1911. If you appreciate the traditional style of firearms, the stainless steel option may be more suited to your taste.

Both the black and stainless steel options are made to the highest Kimber standards, ensuring durability and precision. These factory original parts are perfect for replacing worn-out components or for keeping as spares. It is recommended to have a qualified gunsmith install these parts to ensure proper fitting and safety.

The grip bushings and screws are essential for securing the grip panels of your 1911 pistol. They provide a stable and secure platform for you to hold and operate your firearm. By having a firm grip, you can improve your shooting accuracy and overall handling of the pistol.

In summary, the Kimber 1911 grip bushings and screws in black and stainless steel hex head options offer both functional and aesthetic benefits. You can choose between these two colours to either enhance the classic elegance of your 1911 or give it a modern tactical twist. Remember to consult a qualified gunsmith for installation advice and services.

Bone grips may swell or shrink depending on the moisture content of the material

When bone is dehydrated, its stiffness, tensile strength, and hardness increase, while its strain at fracture and energy to fracture decrease. Bone also becomes less ductile, and its viscoelasticity decreases.

In the context of 1911 grips, the moisture content of bone grips can affect their fit on the gun. If the bone is not fully dried when fabricated into grips, the grips may shrink over time, causing the holes to become up to 1/16" shorter. This can make it difficult to fit the grips onto the bushings and screws of the gun.

To address this issue, it is recommended to use a rat-tail or bastard file to widen the holes in the grips slightly. This will allow the grips to fit more easily over the bushings. It is important to make only a few swipes with the file, as too much material removal can affect the fit of the grips.

Additionally, the type of bone used for the grips can also impact their moisture content and resulting fit. For example, buffalo bone is typically well-dried, while bone from other animals may not be fully dried, leading to greater changes in dimension over time.

In summary, the moisture content of bone grips can affect their fit on the gun, and adjustments may be necessary to ensure a proper fit.

Custom 1911 grip screws are available in gemstone-black, bronze, gold, blue, and rainbow PVD options

Custom 1911 grip screws are available in a variety of colours and finishes to suit your style and firearm model. Whether you're looking for a subtle enhancement or a flashy statement, there is a wide range of options to choose from.

For those who appreciate the finer things, custom 1911 grip screws with gemstone settings are a perfect choice. These screws are finished with a PVD coating, which provides a beautiful and durable surface that surpasses the quality of standard gun finishes. While the process is costly, it delivers jewellery-grade results. You can select from an array of gemstone colours and styles to create a truly unique and custom look. These screws are designed to fit all standard thickness 1911 style grips, including the 1911 Government, Commander, Bobtail, Roundbutt, and compact models, as well as Coonan guns with the standard 1911 grips screw bushing.

One popular option is the gemstone-black PVD finish, which offers a sleek and elegant look. These screws have received positive reviews, with customers praising their ability to enhance the appearance of their grips without being too flashy. The black finish pairs well with a variety of grip materials, such as stainless steel, black leather, and even turquoise.

If you're feeling more adventurous, you can explore the gemstone-bronze PVD option. This finish combines the beauty of bronze with the durability of a PVD coating, resulting in a surface hardness that exceeds normal gun finishes. The oil-rubbed bronze PVD coating adds a touch of warmth and sophistication to your firearm.

For those who want to add a touch of luxury, the gemstone-gold PVD finish is an excellent choice. Gold is a classic colour that never goes out of style, and it can elevate the appearance of your firearm. You can find a variety of gold grip screws on the market, including polished gold-plated options and even 24K gold-plated screws for the ultimate in opulence.

Lastly, if you're feeling playful, the gemstone-blue PVD and rainbow PVD finishes are fun and unique options. These colourful finishes can add a vibrant touch to your firearm, making it stand out from the crowd. With so many custom 1911 grip screw options available, you can easily find the perfect match for your taste and firearm model.

Frequently asked questions