#6-40 Socket Head Cap Screws, Alloy Steel w/ Black Oxide, US SAE Fine Thread

US $6.85
ApproximatelyRM 28.29
Condition:
New
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#6-40 x 3/16"
#6-40 x 1/4"
#6-40 x 5/16"
#6-40 x 3/8"
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#6-40 x 7/16"
#6-40 x 1/2"
#6-40 x 9/16"
#6-40 x 5/8"
#6-40 x 3/4"
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#6-40 x 1"
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10
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More than 10 available168 sold
This one's trending. 168 have already sold.
People are checking this out. 9 have added this to their watchlist.
Shipping:
Free USPS First Class®.
Located in: Gulf Breeze, Florida, United States
Delivery:
Estimated between Mon, 8 Dec and Sat, 13 Dec to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days return. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Coverage:
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eBay item number:116208880898
Last updated on Jul 17, 2025 00:14:48 MYTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Model
#6-40 Socket Cap Screws
Head Style
Socket Cap Head
Thread Size
#6-40
Drive Style
Hex-Key
Material
Steel
Screw Size
#6
Grade
Grade 8
Type
Socket Screws
Thread Count (TPI)
40
Fastener Type
Socket Screw
System of Measurement
Inch
MPN
ASTM A574, ASME B18.3
Finish
Black Oxide
Drive Type
Allen
Coating
Thermal Black Oxide
Thread Diameter (mm.)
3.51mm
Brand
MonsterBolts
Category

Item description from the seller

About this seller

Monster Bolts Fasteners

99.8% positive feedback616K items sold

Joined Jan 2012
Welcome to the official Monster Bolts eBay Store. Formerly named Diablo-Tuning.Monster Bolts was born and raised in the information age to meet the current and future needs of our customers. This is ...
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Detailed Seller Ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
4.9
Communication
5.0

Seller feedback (235,636)

All ratingsselected
Positive
Neutral
Negative
  • c***h (554)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    As advertised. Allowed me to my Ruger rail on my Tactical Solutions MKII barrel. The Ruger screws are 6x48 and the sockets on the TS barrel is 6x40 because the outer casing is made of aluminum. The length was perfect also at a little less than 1/4". It is 3/16 to be exact.
  • s***_ (1)- Feedback left by buyer.
    Past year
    Verified purchase
    These screws were exactly what I needed they fit and work how they are suppose to. I thank you for them, they look and feel top quality. Perfect condition and definitely was worth it. They look real good on my scope so I can’t complain, I’m actually very satisfied with this product and do recommend this for any FN America handgun owner. It helps with mounting a scope.
  • i***o (431)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Perfect fit replacement for Weaver Quad Lock scope rings. Excellent quality.
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