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HomeFasteners & AnchorsSocket head cap screws & set screwsBristol/Allen Round Head Screw Metric Stainless Button 304 ISO 7380

Bristol/Allen Round Head Screw Metric Stainless Button 304 ISO 7380

Bristol/Allen Round Head Screw Metric Stainless Button 304 ISO 7380 in stainless steel, metric thread. 65 sizes available; sold by unit.

Price from
$ 100
Material
acero inoxidable
Finish
Sizes
65
Bristol/Allen Round Head Screw Metric Stainless Button 304 ISO 7380
In stock acero inoxidable milimétrico
Price from
$ 100 COP each
+ 19% VAT · per unit

01Sizes, prices and availability

SKUSizePriceStatusQty
VT-27404 4 X 8 $ 115 In stock
VT-27405 4 X 10 $ 100 In stock
VT-27406 4 X 12 $ 146 In stock
VT-27407 4 X 16 $ 136 In stock
VT-27408 4 X 20 $ 167 In stock
VT-27409 4 X 25 $ 172 In stock
VT-27410 4 X 30 $ 221 In stock
VT-27411 4 X 35 $ 236 In stock
VT-27412 4 X 40 $ 240 In stock
VT-27413 5 X 10 $ 164 In stock
VT-27414 5 X 12 $ 172 In stock
VT-27415 5 X 14 $ 176 In stock
VT-27416 5 X 16 $ 191 In stock
VT-27417 5 X 20 $ 229 In stock
VT-27418 5 X 25 $ 281 In stock
VT-27419 5 X 30 $ 324 In stock
VT-27420 5 X 35 $ 374 In stock
VT-27421 5 X 40 $ 412 In stock
VT-27422 6 X 10 $ 204 In stock
VT-27423 6 X 12 $ 225 In stock
VT-27424 6 X 14 $ 250 In stock
VT-27425 6 X 16 $ 226 In stock
VT-27426 6 X 20 $ 265 In stock
VT-27427 6 X 25 $ 308 In stock
VT-27428 6 X 30 $ 378 In stock
VT-27429 6 X 35 $ 500 In stock
VT-27430 6 X 40 $ 558 In stock
VT-27431 6 X 45 $ 629 In stock
VT-27432 6 X 50 $ 688 In stock
VT-27433 6 X 60 $ 1.043 In stock
VT-27461 6 X 70 $ 1.095 In stock
VT-27462 6 X 80 $ 1.252 In stock
VT-27434 8 X 10 $ 872 In stock
VT-27435 8 X 12 $ 705 In stock
VT-27436 8 X 16 $ 543 In stock
VT-27437 8 X 20 $ 674 In stock
VT-27438 8 X 25 $ 632 In stock
VT-27439 8 X 30 $ 836 In stock
VT-27440 8 X 35 $ 848 In stock
VT-27441 8 X 40 $ 1.256 In stock
VT-27442 8 X 50 $ 1.358 In stock
VT-27443 8 X 60 $ 1.408 In stock
VT-27463 8 X 70 $ 1.514 In stock
VT-27464 8 X 80 $ 1.706 In stock
VT-27444 10 X16 $ 928 In stock
VT-27445 10 X20 $ 1.009 In stock
VT-27446 10 X25 $ 1.159 In stock
VT-27447 10 X30 $ 1.290 In stock
VT-27448 10 X35 $ 1.416 In stock
VT-27449 10 X40 $ 2.027 In stock
VT-27460 10 X 45 $ 1.993 In stock
VT-27450 10 X60 $ 2.364 In stock
VT-27465 10 X70 $ 2.512 In stock
VT-27466 10 X80 $ 2.626 In stock
VT-27451 12 X 16 $ 1.543 In stock
VT-27452 12 X 20 $ 1.752 In stock
VT-27453 12 X 25 $ 1.768 In stock
VT-27454 12 X 30 $ 2.342 In stock
VT-27455 12 X 35 $ 2.493 In stock
VT-27456 12 X 40 $ 2.590 In stock
VT-27457 12 X 45 $ 2.681 In stock
VT-27458 12 X 50 $ 2.979 In stock
VT-27459 12 X 60 $ 3.352 In stock
VT-27467 12 X 70 $ 4.214 In stock
VT-27468 12 X 80 $ 4.615 In stock

Prices per unit, before VAT. Availability is confirmed in the formal quote.

Can't find your reference? Need another size, grade or finish of this fastener? We carry over 12,000 references — we quote it via WhatsApp. Quote via WhatsApp

02Specifications

Materialacero inoxidable
Thread systemmilimétrico
FamilySocket head cap screws & set screws

03Technical description

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 304-A2 stainless steel, metric thread, and ISO 7380 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 45 to 4 X 16, 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.

Available sizes

Actual lot sizeSales unit
10 X 45unit
10 X16unit
10 X20unit
10 X25unit
10 X30unit
10 X35unit
10 X40unit
10 X60unit
10 X70unit
10 X80unit
12 X 16unit
12 X 20unit
12 X 25unit
12 X 30unit
12 X 35unit
12 X 40unit
12 X 45unit
12 X 50unit
12 X 60unit
12 X 70unit
12 X 80unit
4 X 10unit
4 X 12unit
4 X 16unit

Installation recommendations

  • Confirm whether the required thread is UNC, UNF, or metric before requesting a quote; do not mix pitches even if the diameter looks similar.
  • Use a Bristol/Allen key in good condition and fully seated to avoid stripping the internal socket.
  • Verify that the length does not bottom out in blind holes and that it allows proper seating of the head or tip.
  • On stainless steel, avoid contamination with rusted tools and consider compatible lubrication to reduce galling.
  • When the joint is critical, define the torque according to the drawing, base material, and project installation procedure.

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.

04Frequently asked questions

What is the price?

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.

How does it differ from the closest sister reference?

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.

How is it installed or mounted correctly?

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.

What material and thread does this reference have?

This page corresponds to 304-A2 stainless steel with metric thread. The standard reference indicated for selection is ISO 7380 when applicable.

What sizes can I quote?

You can quote the sizes listed in the product technical table. If you need an unpublished length, confirm availability with the sales team.

Is it suitable for outdoor use or corrosive environments?

304-A2 stainless steel improves performance against moisture and moderate corrosion, but final compatibility depends on the environment, chemicals, and maintenance.

05Related products

Updated: July 22, 2026