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Brownells

Stainless Steel Sight Base Screws - 6-40x1/2'''' Fillister Head Ss Screw Refill 24 Pack

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

24-pack Refill

Of 6-40 x 1/2 inch

Ribs, Rings,

Bases in #6 and #8

Made From

18-8 stainless steel

Supplied Plastic

A full specification card

1/2 Inch

Length can be trimmed to

$13.99
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SKU: 080049640

Overview

This refill pack is intended for securing ribs, rings, and bases with #6 and #8 screws, giving hunters and gunsmiths a practical supply for common sight and mounting work. It includes 24 fillister head screws in 18-8 stainless steel, packaged in a plastic bench box with a full spec card for organization. The 1/2-inch length can be trimmed to fit as needed, which adds flexibility when matching different setups. It is a straightforward parts refill for maintaining or assembling sight and base hardware without unnecessary extras.

Why Hunters Choose the Brownells

Includes 24

Stainless steel screws in a

Six Styles

Sizes support ribs, rings, and

1/2-inch Length

Can be trimmed to fit

18-8 Stainless

Steel construction is specified in

Full Specification

Card included for easier organization

Key Features

  • 24-pack refill of 6-40 x 1/2 inch fillister head stainless steel screws.
  • Designed for ribs, rings, and bases in #6 and #8 screw applications.
  • Made from 18-8 stainless steel.
  • Supplied in a plastic bench box with a full specification card.
  • 1/2 inch length can be trimmed to fit as needed.

Best Used For

  • Hunters replacing sight base screws on ribs, rings, or bases during routine maintenance.
  • Gunsmiths needing a mixed refill pack for bench stock and small repair jobs.
  • Users who want trim-to-fit screws for custom fitting during installation.
  • Anyone organizing spare 6-40 fillister head screws in a plastic bench box.

Specifications

Head StyleFillister Head
Included StylessizesSix styles/sizes
Length1/2 in
Length Metric12.7 mm
Material18-8 stainless steel
Pack Quantity24
Pack TypeRefill
PackagingPlastic bench box
Screw Size6-40
Spec Card IncludedYes
Trim To FitYes
UseFor ribs, rings & bases

Pros

  • Includes 24 stainless steel screws in a convenient plastic bench box
  • Six styles and sizes support ribs, rings, and bases
  • 1/2-inch length can be trimmed to fit as needed
  • 18-8 stainless steel construction is specified in the product data
  • Full specification card included for easier organization and identification

Considerations & Trade-offs

  • This is a refill pack of 24 screws, so it is best suited to replacing or stocking up on existing hardware rather than outfitting a full setup from scratch.
  • The screws are listed as 1/2 inch long and are intended to be trimmed to fit as needed, so final fit depends on the specific application.
  • The product description references #6 and #8 screws for ribs, rings, and bases, so compatibility should be checked carefully before use.
  • The pack is organized as mixed styles/sizes in a plastic bench box, which is practical for storage but means you are not getting a single uniform screw size in every compartment.

Suggested Comparisons

  • Scope mount screw kits
  • Rifle sight base hardware
  • Gun ring screw assortments
  • Stainless steel firearm fastener refills

Suggested Accessories

  • Screwdriver set
  • Thread locker
  • Gun cleaning kit
  • Small parts organizer

Frequently Asked Questions

What is included in this screw refill pack?

The pack contains 24 screws, described as two dozen in a plastic bench box with a full spec card.

What size are these sight base screws?

The product is listed as 6-40 x 1/2 inch fillister head screws, and the short description notes they are for #6 and #8 screws for ribs, rings, and bases.

What material are the screws made from?

The long description states they are made from 18-8 stainless steel.

Are these screws ready to use at 1/2 inch length?

They are listed as 1/2 inch long and also noted as trim to fit as needed, so the stated length may be adjusted for the application.

What type of firearm applications are these screws intended for?

The short description says they are for ribs, rings, and bases.