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🔩 Secure your build with strength and style — don’t get left behind!
The LLB 300mm M10 coach screws are zinc-plated, half-threaded wood screws with a 17mm hex head, designed for heavy-duty fastening in wood and concrete. Each pack contains six durable screws, engineered for professional-grade construction and outdoor durability.


| ASIN | B0CDPR1FJC |
| Best Sellers Rank | 32,561 in DIY & Tools ( See Top 100 in DIY & Tools ) 19 in Lag Bolts |
| Brand Name | LLB |
| Colour | Silver |
| Compatible Groove Diameter | 4 Millimeters |
| Country Of Origin | Poland |
| Customer Reviews | 4.4 out of 5 stars 106 Reviews |
| Drive System | Internal Hex |
| Exterior Finish | Zinc |
| Exterior finish | Zinc |
| Fastener Size | 4mm x 300mm |
| Fastener Type | Wood Screws |
| Finish Types | Zinc Plated |
| Head Type | Hex |
| Head style | Hex |
| Item Diameter | 4 Millimetres |
| Item Dimensions | 30 x 1 x 1.7 centimetres |
| Item dimensions L x W x H | 30 x 1 x 1.7 centimetres |
| Manufacturer | LLB |
| Manufacturer Part Number | WS.MAR.300 |
| Material | Zinc |
| Material Type | Zinc |
| Metal | Zinc |
| Number Of Items | 6 |
| Number of Pieces | 6 |
| Outside Diameter | 17 Millimetres |
| Point style | Flat Point |
| Screw Head Style | Hex |
| Screw Point Style | Flat Point |
| Set Name | Set of 6 Galvanised Wood Screws M10 (10 mm x 300 mm) |
| Set Screw Thread Type | UNC |
| Size | 4mm x 300mm / 0.4" x 12" |
| Thread Coverage | Fully Threaded |
| Thread Size | M10 |
| Thread Style | Right Hand |
| Thread size | M10 |
| Unit Count | 1.0 count |
C**G
Great item, hard to get locally !
They worked for me ! I'd buy again :-)
S**N
Product as described and value for money
Perfect for what was wanted. Was functional and enabled the chunk of wood to be removed as described. Good quality and value for money.
M**R
a
a
M**H
Great Quality
Used to help pull out in old fence post so put a great deal of force on them without issue. Great quality, recommended.
R**T
Coach Screws
Good quality, did the job for what i needed them for.
P**S
Quality product
I bought these to screw down through an old railway sleeper as I was standing. My drive quality was good. Very strong. Great value for money and easy to use
K**2
Absolute garbage
DO NOT BUY these. Absolute garbage. They all snap and their only going into wooden sleepers. Absolutely abysmal item. Will be returning for refund.
R**R
Constitution heavy duty screws
They are ok bend under pressure
B**U
Plus rien ne bouge
Pour une fixation dans le sol devant résister à la traction en remplacement de tire-fond de 200, parfait avec une injection de résine.
Trustpilot
2 days ago
1 month ago