Bristol/Allen Round Head Screw Metric Button Buton Metric in carbon steel, metric thread. 48 sizes available; sold by unit.
| SKU | Size | Price | Status | Qty | |
|---|---|---|---|---|---|
| VT-27002 | 3 X 10 | $ 43 | In stock | ||
| VT-27003 | 3 X 12 | $ 57 | In stock | ||
| VT-27004 | 3 X 16 | $ 74 | In stock | ||
| VT-27005 | 3 X 20 | $ 95 | In stock | ||
| VT-27006 | 4 X 10 | $ 57 | In stock | ||
| VT-27007 | 4 X 12 | $ 64 | In stock | ||
| VT-27008 | 4 X 16 | $ 72 | In stock | ||
| VT-27009 | 4 X 20 | $ 128 | In stock | ||
| VT-27010 | 4 X 25 | $ 143 | In stock | ||
| VT-27011 | 4 X 30 | $ 169 | In stock | ||
| VT-27012 | 5 X 10 | $ 81 | In stock | ||
| VT-27013 | 5 X 12 | $ 100 | In stock | ||
| VT-27014 | 5 X 16 | $ 107 | In stock | ||
| VT-27015 | 5 X 20 | $ 117 | In stock | ||
| VT-27016 | 5 X 25 | $ 140 | In stock | ||
| VT-27017 | 5 X 30 | $ 152 | In stock | ||
| VT-27018 | 5 X 35 | $ 208 | In stock | ||
| VT-27019 | 5 X 40 | $ 197 | In stock | ||
| VT-27020 | 5 X 45 | $ 259 | In stock | ||
| VT-27021 | 5 X 50 | $ 285 | In stock | ||
| VT-27022 | 6 X 10 | $ 117 | In stock | ||
| VT-27023 | 6 X 12 | $ 126 | In stock | ||
| VT-27024 | 6 X 16 | $ 145 | In stock | ||
| VT-27025 | 6 X 20 | $ 164 | In stock | ||
| VT-27026 | 6 X 25 | $ 202 | In stock | ||
| VT-27027 | 6 X 30 | $ 238 | In stock | ||
| VT-27028 | 6 X 35 | $ 267 | In stock | ||
| VT-27029 | 6 X 40 | $ 298 | In stock | ||
| VT-27030 | 6 X 45 | $ 322 | In stock | ||
| VT-27031 | 6 X 50 | $ 348 | In stock | ||
| VT-27032 | 6 X 60 | $ 419 | In stock | ||
| VT-27033 | 8 X 10 | $ 326 | In stock | ||
| VT-27034 | 8 X 12 | $ 295 | In stock | ||
| VT-27035 | 8 X 16 | $ 357 | In stock | ||
| VT-27036 | 8 X 20 | $ 388 | In stock | ||
| VT-27037 | 8 X 25 | $ 326 | In stock | ||
| VT-27038 | 8 X 30 | $ 380 | In stock | ||
| VT-27039 | 8 X 35 | $ 516 | In stock | ||
| VT-27040 | 8 X 40 | $ 472 | In stock | ||
| VT-27041 | 8 X 45 | $ 642 | In stock | ||
| VT-27042 | 8 X 50 | $ 699 | In stock | ||
| VT-27043 | 8 X 60 | $ 718 | In stock | ||
| VT-27044 | 8 X 70 | $ 1.044 | In stock | ||
| VT-27045 | 8 X 80 | $ 1.024 | In stock | ||
| VT-27046 | 10 X 10 | $ 422 | In stock | ||
| VT-27047 | 10 X 12 | $ 502 | In stock | ||
| VT-27048 | 10 X 16 | $ 512 | In stock | ||
| VT-27049 | 10 X 20 | $ 628 | In stock |
Prices per unit, before VAT. Availability is confirmed in the formal quote.
| Material | acero al carbono |
| Thread system | milimétrico |
| Family | Socket head cap screws & set screws |
The Bristol/Allen button round head screw is an industrial fastening element with Bristol or Allen drive, used in visible assemblies, housings, covers, and joints with lower head height. TECTUL offers it in carbon steel, metric thread, and metric thread reference when applicable to the product design. Selection must start from the thread, usable length, head type, and compatibility with the existing threaded part or nut. Compared with a countersunk Bristol screw, it does not require countersinking; compared with a cylindrical head, it offers a lower profile and cleaner finish. For this lot there are actual sizes such as 10 X 10 to 5 X 50, sold by unit. It is an option for maintenance, fabrication, equipment assembly, spare parts, and assemblies where precise, removable fastening with good tool access is required.
| Actual lot size | Sales unit |
|---|---|
| 10 X 10 | unit |
| 10 X 12 | unit |
| 10 X 16 | unit |
| 10 X 20 | unit |
| 3 X 10 | unit |
| 3 X 12 | unit |
| 3 X 16 | unit |
| 3 X 20 | unit |
| 4 X 10 | unit |
| 4 X 12 | unit |
| 4 X 16 | unit |
| 4 X 20 | unit |
| 4 X 25 | unit |
| 4 X 30 | unit |
| 5 X 10 | unit |
| 5 X 12 | unit |
| 5 X 16 | unit |
| 5 X 20 | unit |
| 5 X 25 | unit |
| 5 X 30 | unit |
| 5 X 35 | unit |
| 5 X 40 | unit |
| 5 X 45 | unit |
| 5 X 50 | unit |
We dispatch to Bogotá, Medellín, Cali, Barranquilla, and all of Colombia. Request a quote via WhatsApp for the Bristol/Allen button round head screw, indicating size, thread, material, quantity, and whether you need equivalence with DIN, ISO, or inch thread.
The price depends on the size, material, thread, standard, and requested quantity. Send us the exact reference via WhatsApp and TECTUL will quote according to lot availability.
Compared with a countersunk Bristol screw, the button round head does not require countersinking; compared with a socket head cap screw, it has lower visible height and a smoother surface.
It is installed with a Bristol/Allen key or compatible tool, verifying thread pitch, available depth, head or tip seating, and the torque defined by the joint design.
This page corresponds to carbon steel with metric thread. The standard reference indicated for selection is metric thread when applicable.
You can quote the sizes listed in the product technical table. If you need an unpublished length, confirm availability with the sales team.
Uncoated carbon steel must be protected if it will be exposed to moisture, chemicals, or weather.
Updated: July 22, 2026
