1 / 5M3 Button Head Socket Cap Screws, 12.9 Steel w/ Black Ox ISO 7380, 0.50 Coarse
Brand: MonsterBolts
In stock
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- Ships from
- US
- Format
- Buy It Now
Sold by
monsterbolts
183,615 feedback · 99.9 positive
Specifications
- Length
- M3 x 5mm
- Package Quantity
- 20
- Model
- ISO 7380
- Head Style
- Button Head
- Thread Size
- M3-0.50
- Drive Style
- Hex-Key
- Material
- Alloy Steel, Steel
- Screw Size
- M3
- Grade
- 12.9
- Type
- Socket Screws
- Fastener Type
- Socket Screw
- Thread Pitch (mm.)
- 0.5
- System of Measurement
- Metric
- MPN
- ISO 7380, M3 DIN 9427
- Model - Alternate name
- DIN 9427
- Drive Type
- Allen
- Coating
- Black Oxide
- Thread Diameter (mm.)
- 3mm (M3)
- Brand
- MonsterBolts
- Finish
- Black Oxide
About this product
Monster Overview: Fix your project right the first time with M3-0.50 Metric Button Head Socket Cap Screws from Monster Bolts! Ideal for automotive, industrial, and general-purpose applications, especially in areas where a low-profile, rounded head is desirable. These screws are made from high-strength Alloy Steel with…Read full descriptionShow less
Monster Overview:
Fix your project right the first time with M3-0.50 Metric Button Head Socket Cap Screws from Monster Bolts! Ideal for automotive, industrial, and general-purpose applications, especially in areas where a low-profile, rounded head is desirable. These screws are made from high-strength Alloy Steel with a Class 12.9 rating, ensuring maximum durability and reliability. Finished with a Thermal Black Oxide coating, these screws offer both strength and corrosion resistance, making them perfect for demanding applications.
Monster Features:
- Low-Profile Design: Button head cap screws provide a low-profile, rounded head, perfect for situations where a sleek, unobtrusive appearance is desired.
- Drive: Uses a standard M2 Allen key (socket wrench), ensuring easy installation and removal. We highly recommend using a non-abused hex key. Available here if you need a fresh one!
Monster Specifications:
- Diameter: M3 / 3mm
- Thread Size: 0.50 - Coarse Thread (Standard)
- Length: Available in 5mm - 30mm lengths, please select from the drop-down menu above.
- Material: Black Alloy Steel Class 12.9 - Extreme Strength
- Coating: Thermal Black Oxide provides a mild layer of protection against corrosion
- Specifications: Complies with ISO 7380 / DIN 9427 standards
More Monster Bolts:
Matching Nuts & Washers: Pair these screws with our M3 nuts and washers for a complete fastening solution. Available here.
Order Yours Today and Experience the Monster Bolts Difference!
Buy with confidence! Every order from Monster Bolts is backed by our commitment to quality and customer satisfaction.
Description written by a seller of this product on eBay. Store, shipping, payment and contact text has been removed. Check each offer for that seller's own terms.
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1 listing from 1 seller. Prices update periodically. Only one listing of this exact product was found; more sellers appear here as they are discovered.
- Lowest price
- $7.87
- Offers
- 1from 1 seller
| Seller | Condition | Ships from | Price | Shipping | Delivery & returns | Total | |
|---|---|---|---|---|---|---|---|
monsterbolts via eBay 99.9% positive · 183,615 ratings Highly rated seller | New | United States | $7.87Lowest price | Free | Est. Oct 24 – Oct 31 | $7.87 | View Deal |
Seller ratings are the feedback eBay reports for each seller. "Highly rated" means at least 98% positive from at least 100 ratings. Total = price + shipping, shown only when the listing states its shipping cost.
Price history
Lowest price available each day, tracked since Oct 20, 2026 (9 days).
- Current lowest
- $7.87
- Previous price
- No change yet
- Lowest recorded
- $7.87
- Highest recorded
- $7.87
- Trend
- → Stable
- since Oct 20
The lowest price for all conditions has not changed in this period, so there is no trend to chart yet.
History is built only from prices this site observed, starting the day tracking began; nothing is estimated or back-filled. Each point is the lowest price among the offers available that day. Shipping, duties and taxes are not included.







