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Hex Plug Screws - 8-40 X .130''''hex Socket Plug Screws 12 Pack
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$16.99
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SKU: 080534002
Overview
These steel, blued plug screws are made to close off unused sight and scope mounting holes on a rifle or pistol, helping keep dirt and debris out while leaving the firearm with a cleaner, more finished appearance. The hex-head opening matches other screws on the firearm, which makes them a practical choice for maintaining a tidy setup after optics or sights are removed. Offered in a 12-pack, they suit hunters and shooters who want a simple, purpose-built way to cover open mounting points.
Why Hunters Choose the Brownells
Helps Keep
Dirt and debris out of
Clean, Finished
Look on rifle or pistol
Hex-head Opening
Matches other screws on the
Offered 8-40
X .130 inch size
Sold Convenient
12-pack
Key Features
- Steel hex-head plug screws for unused sight and scope mounting holes
- Helps keep dirt and debris out of empty screw holes
- Provides a clean, finished look on rifle or pistol
- Hex-head opening matches other screws on the firearm
- Sold in packs of 12
- 8-40 x .130 inch size
Best Used For
- Hunters wanting to keep unused sight and scope mounting holes covered on rifles or pistols
- Firearm owners seeking a clean, finished look after removing optics or accessories
- Users needing matching hex-head plug screws for 8-40 mounting holes
- Those maintaining a tidy firearm setup with simple, steel replacement screws
- Owners of rifles or pistols with unused mounting holes requiring a dozen-pack solution
Specifications
| Available Sizes | 6-48 x 1/8 in or 8-40 x 0.130 in |
|---|---|
| Blade Finish | Blued |
| Compatible Firearm Type | Rifle or pistol |
| Head Type | Hex-head |
| Length | 0.130 in |
| Material | Steel |
| Pack Quantity | 12 |
| Socket Type | Hex socket |
| Thread Size | 8-40 |
| Use | Fill empty sight and scope mounting holes |
Pros
- Helps keep dirt and debris out of unused screw holes
- Provides a clean, finished look on rifle or pistol mounts
- Hex-head opening matches other screws on the firearm
- Offered in 8-40 x .130 inch size
- Sold in a convenient 12-pack
Considerations & Trade-offs
- These are plug screws for unused sight and scope mounting holes, so they are a fitment item rather than a universal accessory.
- The product is offered in specific thread sizes only: 6-48 x 1/8" or 8-40 x .130", so matching the correct hole size is necessary.
- They are sold in packs of 12, which may be more than needed if you only have a small number of open holes to cover.
- The blued steel finish is functional and clean-looking, but it is a finish-specific choice rather than an added feature set.
Suggested Comparisons
- Scope mounting screws
- Sight mounting hardware
- Firearm maintenance accessories
- Rifle and pistol small parts
Suggested Accessories
- Hex key set
- Gun cleaning kit
- Thread locker
- Scope mounting hardware
Frequently Asked Questions
What are these hex plug screws used for on a firearm?
They are used to fill empty sight and scope mounting holes on a rifle or pistol, helping keep dirt and debris out and giving the firearm a clean, finished look.
What size and thread options are listed for these plug screws?
The source data lists 6-48 x 1/8" or 8-40 x .130" versions. This product title specifies the 8-40 x .130" hex socket plug screws.
How many screws come in a pack?
They are sold in packs of a dozen, so you get 12 screws.
What material and finish are specified?
The specifications list them as steel with a blued finish.
Do these screws have a hex opening?
Yes. The description says they feature a hex-head opening to match other screws on the firearm.