Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Hardened Carbon Steel |
| Thread Diameter | M4 (4mm) |
| Total Length | 120 mm |
| Head Style | Countersunk (Flat Head) |
| Drive Type | Phillips (PH2) |
| Standard | GB (Guobiao) |
| Surface Finish | Black Oxide |
| Tensile Strength | High Strength (Class 10.9 Equivalent) |
| Thread Type | Self-Tapping |
| Package Quantity | 50 Pieces |
Anonymous
Mar 15, 2026
Rating: 5/5
Strong and durable
Used them for heavy-duty switch assembly. No stripping on the Phillips head even under high torque. Very satisfied with the hardness.
Anonymous
Mar 10, 2026
Rating: 4/5
Solid fasteners
Head fits well with a standard PH2 driver. Slight variance in the black oxide finish on a couple of screws, but functionally perfect.
Anonymous
Mar 09, 2026
Rating: 5/5
Great length
120mm is hard to find in standard hardware stores. These fit perfectly through my chassis panels. Will buy again.
Anonymous
Feb 22, 2026
Rating: 4/5
Good quality, slow shipping
Steel is hard and threads cut well into aluminum. Only giving 4 stars because shipping took longer than expected, but the product itself is great.
Anonymous
Feb 18, 2026
Rating: 5/5
Perfect for my project
These screws are exactly what I needed for my metal enclosure build. The 120mm length is hard to find locally and the steel quality is excellent.
Q: Do you offer bulk discounts for larger orders?
A: Yes, please contact our sales team directly through the contact page for pricing on bulk quantities over 500 units.
Q: What driver size fits these screws best?
A: These screws are designed for a PH2 Phillips head driver. Using the correct size prevents cam-out and damage to the head.
Q: Is the thread running the full length of the screw?
A: Yes, these are fully threaded self-tapping screws from head to tip.
Q: Can these be used on aluminum profiles?
A: Yes, they are self-tapping and work well on aluminum. We recommend pre-drilling a pilot hole for best results.
Q: Are they rustproof for outdoor use?
A: The black oxide finish provides some corrosion resistance, but for harsh outdoor environments, we recommend applying additional coating.
Original Car Tires - Used Passenger Van Tires in Sizes 175/185/195/205 R13/R14/R15/R16/R17
$59.00
BeeNesting Waterproof Bag, Wet/Dry Separation, Large Capacity Storage for Swimming, Beach, Camping, Travel, Outdoor 12+20L
$33.10
Custom Acrylic UV Printed Advertising Signs - Office Door Plates, ID Tags, Number Plaques, and Small Signboards
$1.00
Car Tire Stone Removal Tool - Hook Pick for Cleaning Gravel from Vehicle Treads
$4.53
Strawberry Planting Trough PVC 3D with Built-in Drainage Greenhouse Soilless Cultivation Equipment Vertical Growing Rack
$13.60
Baohong Watercolor Sketchbook - Glued on Four Sides, 32K/16K/8K, 200g/300g Cotton Pulp Paper for Postcards, Travel Sketching, and Oil Pastels
$20.00
Kitchen Sink Storage Rack Multi-Function Dish Drying Shelf Over-Sink Organizer Bowl Cabinet
$105.00
Blower Motor Compatible with Corolla, Crown, Camry, Highlander, Crown, Reiz, RAV4, Prado, Land Cruiser
$234.32
Copic Airbrush - Marker Rendering Tool (Cannot Be Used Directly), Model ABS-3, Compatible with Copic Series 1 and 2
$285.00
Beijing Hezhong Dental Implant Service - Includes Implant and Abutment at Central Procurement Prices; Korean Dentium and American Implant Options Available
$1.00
Mini Watercolor Paint Set with Carry Case for Travel Sketching, Journaling, and Students
$5.50
PGYTECH Dandelion SD Card Case for DSLR and Mirrorless Cameras - Portable TF Memory Card, SIM Card, and XD Card Holder
$84.10
UE4 Unreal Engine 5 Indie Friendly Sounds RPG Sounds Pack - Game-Ready Audio Effects
$0.50
G80 Manganese Steel Lifting Chain Rigging with Double or Quadruple Hooks, Lifting Rings, and Crane Hooks
$63.00
Mont Marte Long-Handle Bristle Brush for Acrylic Paint, Art Flat Brush, Oil Painting Brush
$4.00
Stylish Portable Invisible Braces Case for Kids' Orthodontic Retainers and Cleaning
$12.40
Used Car Tires (80-90% New) in Sizes 165, 175, 185, 195, 205, 215, 225 - Code 551456
$65.00
Commercial and Home Dual-Head Stainless Steel Vegetable Slicer for Cafeterias and Restaurants - Direct from Manufacturer (Slices, Dices, Julienne)
$2,142.00
Mountain Ghost Spending Money Cinnabar Coloring Tool Five Emperor Copper Coin Coloring Wood Carving Stone Tablet Taishan Stone Inscription Non-Fading Landscape Buddha Guan Calligraphy Fine Brush Traditional Seal Script Coloring Pen Tracing
$17.60
Wide-Opening Chain Sling Assembly with Hooks - Heavy-Duty Lifting Gear, Iron Chains, and Crane Hoist Hooks
$145.00
Sketch Blending Stump Set for Artists, Detail Highlight and Shadow Smudging Tools, Cotton Swabs, Scraper, and Sponge Pen Refills
$6.80
Mini Watercolor Paint Set with Walnut Wood Board, Portable Easel, and Travel Sketchbook
$4.68
Modern Housewife Kitchen Sink Organizer - Foldable Dish Drying Rack and Storage Shelf
$44.20
Skid-Mounted Integrated Screw Air Compressor for Laser Cutting - 15kW/22kW/37kW, 16kg, Permanent Magnet VFD
$23,500.00
Wooden Handle Leather Rattle Drum Baby Toy Glue-Free Paint-Free for Ages 1+ Boys and Girls Wooden Shaker
$8.42
![[Folded Booklet] Liu Chunlin: Palace Examination Essay Final Zhuangyuan Small Regular Script Calligraphy Copybook Original Size Long Scroll](https://www.gosteppe.com/cache/small/product/269742/legacy-main-81360b2f385dab43c5030767.webp)
[Folded Booklet] Liu Chunlin: Palace Examination Essay Final Zhuangyuan Small Regular Script Calligraphy Copybook Original Size Long Scroll
$14.20
Stainless Steel Sponge Drain Rack - No-Drill Wall-Mounted Kitchen Sink Organizer for Steel Wool and Scrub Pads
$2.60
Analysis of Wang Duo's Classical Poetry Composition Techniques (50 Analyses + 50 Comparisons)
$89.00
Custom Sheet Music Transcription Service for 'Farewell Letter' for Saxophone, Clarinet, Flute, Trumpet, Violin, and Cello
$12.00
Japanese Surplus san-x Rilakkuma Bowl Set - Oven-Safe Bowl with Base and Two Forks for Ice Cream or Hot Pot
$69.90
![[M2-M20] Stainless Steel Spring Washer](https://www.gosteppe.com/cache/medium/product/16306/legacy-main-ef3d2dba3bde669d48e6cca2.webp)
