Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Screws
Origin	-
Material	Pure Brass (H59/H62)
Head Type	Headless (Set Screw)
Drive Type	Internal Hex (Allen)
Point Style	Concave Cup Point
Thread Standard	Metric (National Standard)
Available Sizes	M3, M4, M5, M6, M8, M10
Surface Finish	Polished Gold Tone
Corrosion Resistance	High (Suitable for humid environments)
Application	Machine fixing, shaft locking, electrical contacts
Package Contents	Assorted kit or bulk pack (varies by selection)

6 reviews

Anonymous

Mar 30, 2026

Rating: 4/5

Solid construction

Very happy with the build quality. The hex socket is deep enough to get good torque. I deducted one star only because the packaging was a bit flimsy, but the screws themselves are top-notch.

Anonymous

Mar 27, 2026

Rating: 5/5

Best seller for a reason

These are now my go-to set screws. The concave end provides excellent holding power on round shafts. The price point is very competitive for pure brass.

Anonymous

Mar 25, 2026

Rating: 5/5

Excellent corrosion resistance

I installed these in a high-humidity environment outdoors. After three months, there is zero sign of rust or tarnish. Pure brass is definitely the way to go for this application.

Anonymous

Mar 24, 2026

Rating: 5/5

Great variety pack

Having multiple sizes in one order saved me a trip to the hardware store. The M6 and M8 sizes are particularly robust. Highly recommend for general maintenance kits.

Anonymous

Mar 08, 2026

Rating: 5/5

Perfect fit for my machinery repair

These brass set screws are exactly what I needed. The concave point grips the shaft well without slipping, and the internal hex head is precise. No stripping occurred during installation.

Anonymous

Mar 04, 2026

Rating: 4/5

Good quality, fast shipping

The brass material feels solid and has a nice finish. I used the M4 size for an electronics project. One screw had a slightly rough thread, but the rest were perfect.

5 FAQ

Q: Do you sell an Allen key that fits these screws?

A: Yes, we offer a matching metric hex key set in our 'Tools' category. Please check the product description for the specific size required for your selected screw diameter.

Q: What is the thread pitch for the M5 size?

A: The M5 size follows the standard National Metric coarse thread pitch, which is 0.8mm.

Q: Are these screws suitable for use in saltwater environments?

A: While pure brass offers good corrosion resistance, prolonged exposure to direct saltwater may eventually cause dezincification. For marine applications, we recommend applying a protective coating or using stainless steel alternatives if extreme durability is required.

Q: Can these be used to secure a motor shaft?

A: Yes, the concave cup point is specifically designed to dig slightly into the shaft surface to prevent rotation, making them ideal for securing motor shafts and pulleys.

Q: Is the brass lead-free?

A: Our standard H59/H62 brass alloy contains small amounts of lead to improve machinability. If you require certified lead-free brass for specific compliance reasons, please contact our sales team for custom options.

Explore your interests

Honeywell Fresh Air Filter - ERF150/ERF250/ERF350C0N/ERF150D/250D/350D Replacement Filters

$54.00

Chint Claw Hammer, One-Piece Formed Iron Hammer, Tool Nail Hammer, Mini Household Small Hammer Specialized for Woodworking

$5.00

Aluminum Alloy Diaphragm Coupling High Rigidity High Torque SCPS DBJ SCPW Servo Screw Motor Coupling

$28.80

Mold Support Pins SKD61; Three-stage Support Rods; Two-stage Mold Ejector Pins; Heat-resistant Stepped Push Rods with Head; Secondary Support Pins

$5.80

Iron Galvanized Spring Washer Split Spring Washer Metal Elastic Shim M3 M4 M5 M6 M8 M10 M12 M14 M16 M20

$3.60

Bronze Rings Bronze Bushings Bronze Washers and Gaskets Bronze Sleeves Lathe Machined 2.5/3/4/5/6/8/10/12 Customizable

$1.50

Beech Wood Two-Piece Cleaver Handle Accessories, Household Fixed Guard, Handmade Knife Rivet Handle Replacement, Solid Wood Handle

$3.51

Xingchen Oil-Water Separator Filter AC2010-02D, Automatic Drain Two-Component Unit AC3010-03/AC4010

$8.00

Universal Joint Cross Bearing - Sizes 20x45, 22x55, 20x55

$19.00

Figure-8 Coupling GB Encoder Shaft Connector Polyurethane TPU Flexible Plastic Elastic Shaft Sleeve

$13.00

Heavy-Duty Double Steel Wire Tiger Clamp Galvanized Strong Hose Clamp for Pipes Hoses Water Oil Tubes Stainless Steel Band Clamp

$2.60

European Standard Aluminum Profile T-Slot Nuts, Carbon Steel Square Nuts for Types 20, 30, 40, 45 (M3/M4/M5)

$0.55

Custom Non-standard Parts

$650.00

GA/GB Precision Guide Bushing Inner Small Guide Post Stamping Hardware Mold Wear-Resistant 8 10 12 14 16 18 20 25

$3.20

Aotian Extreme 24-25 BURTON STEP ON GENESIS Men's Dual Highback Step-On Snowboard Bindings

$2,288.50

Cungang Micro Ball Guide Pillar and Sleeve, Precision Micro Ball Bushing Guide Assembly, Bronze Bushing, FA Automation Bearing

$60.00

Set Screws Grade 12.9 Concave End Hex Socket Set Screws, Headless Grub Screws, Machine Screws, Tip Screws m3 m4 m5 m6

$2.49

CNC Lathe 0640 Chuck Saw 4-Cut Non-Quenched Round Through Hole 3-46 Internal Thread M48x1.5 Spindle

$20.00

304 Stainless Steel Extension Spring with S-Hook, Strong Curved Hook, Various Sizes and Lengths, Customizable for Oven Door Pull Springs

$1.00

Micro HK Needle Roller Bearing Assortment, Inner Diameters 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17-40mm

$0.58

In Stock Kaisite Solenoid Valve DG4V-5-2C-FW-H-60H 0C 6C 33C 8C 7C

$820.00

Sliding Bar Socket Extension Bar Power Bar Sliding Bar Large 1/2 Medium 3/8 Small 1/4 Fly Rail Tube Wrench Extension Bar Sliding Rod Tool

$3.25

Rotary Worktable Vertical and Horizontal Dual-Use Indexing Plate High-Precision CNC Milling Machine Rotary Table Indexing Head TS TSL

$2,155.00

Flat Pressure Thrust Ball Bearings 51200 51201 51202 51203 51204 51205 51206

$4.60

M20 National Standard Turnbuckle, Malleable Iron Screw Rigging, Spiral Buckle, Galvanized Flower Lantern Bolt, Utility Pole Wire Rope Tensioner

$10.80

M6 M8 M10 M12 M14 M16 Stainless Steel 304 Round Head Rivets GB867 Knock-in Mushroom Head Solid Sign Rivets

$2.43

Hammer Drill Adapter Chuck: Universal Connector for Rotary Hammers and Hand Drills, Compatible with Round Shank (Two Grooves) and Square Shank (Four Grooves)

$5.04

Precision Ball Guide Pillar and Bushing, Rolling Types 20 22 25 28 32 38 SRP TRP SGP Mold Accessories

$28.00

Wear-Resistant Double-Sided Dustproof Wire Grommet Round Cable Bushing Ring for Chassis Rubber Seal

$20.80

400kg 600kg 800kg High-Power Electric Vacuum Suction Cup, Construction Site Building Glass Handling Vacuum Lifting Machine

$5,664.00

TWSNS Taizhuan Shannais Oil-Water Separator Filter Self-Adjusting Pressure Valve Air Source Treatment Two-Piece Unit Pressure Reducing Valve

$11.00

Heavy-Duty Universal Caster Wheels, Silent Load-Bearing Rollers with Brakes, Directional Swivel Wheels for Trolleys, Furniture Moving Base

$2.13

Heavy-Duty Swivel Caster Polyurethane 4568 Inch Push Cart Plate Cart Cargo Wheel Wear-Resistant Steering Wheel Brake Wheel

$4.27

Galvanized Iron Thickened Split Lock Washer with Wide Flat Washer, Elastic Metal Shim M5 M6 M8 M10 M20

$1.47

Sliding Bar 1 Inch Heavy Duty 1/2 Sliding Bar Socket Extension Bar 1/4 3/8 4 Extended Bar Long Adapter Connector

$9.95

Air Source Processor Two-Piece Unit (BFR2000, BFC2000/3000/4000), Pressure Regulating Oil-Water Separator

$45.00

High-Strength Fiberboard Screws Ecological Board Hardened Long Color Zinc Self-Tapping Woodworking Wall Board Drywall Screws Cabinet M3 M5

$6.37

Composite Washer External Hex Drill Tail Self-Tapping Screws for Color Steel Roofing Tiles, National Standard with Washer

$24.00

Custom Helical Gears for Reducers - Non-Standard Cylindrical Spiral Gears with Left/Right Hand Rotation, Module 1-20, 45-Degree Helix Angle

$10.00

Hammer Nut Hammer Head Cap Furniture Two-in-One Connector Cylinder Hammer Embedded Hex Socket Screw Cap M6 M8

$3.00