no screws are not included, depending what material you are fastening the brackets to will determine length of screws you buy

what number screw or type od screw head should be used?

#8 Phillips round head would be fine depending on what you're screwing it into. 1." - 1.5" L or up to a #10

Will this handlke 1/2" flex conduit (which is 1/2" inside but is perhaps 5/8" outside)?

If you wanted to bend each one out a bit they would. The gap measure between is .5" and that's a snug 0.5" The strap is plenty sturdy. ( Contract work that requires inspection. I do not know if it's legal to bend them ). The bracket is plenty strong. I used them to attach cattle fence panels to a wall. 3/4" bracket and bend it in may be easier.

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Sigma Electric ProConnex 55919M One-Hole BX Metal Brackets Strap 38-Inch, 100-Pack

Sigma Electric ProConnex 55919M One-Hole BX Metal Brackets Strap 38-Inch, 100-Pack

Product ID: 273387506

Details

Brand
Sigma
Colour
Gray
Item dimensions L x W x H
33 x 13 x 12
Item weight
227 g
Material
Alloy Steel

📏38-inch length for versatile mounting

📦100-pack bulk supply for large projects

🔩Zinc-plated steel for ultimate durability

€ 120.90

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Description

🔧 Secure your wiring like a pro — don’t get left behind!

BULK READY - 100-piece pack keeps your project flowing without constant reordering
PERFECT FIT - Designed for 14/2 to 10/2 AC and MC cables plus 3/8-inch FMC, ensuring seamless compatibility
BUILT TO LAST - Zinc-plated alloy steel resists corrosion and wear for long-term reliability
SLEEK STRONG - Powder-coated finish adds a professional look while protecting against the elements
TRUSTED QUALITY - Sigma Electric’s ProConnex line boasts a 4.8-star rating from 845+ pros

The Sigma Electric ProConnex 55919M One-Hole BX Metal Bracket Strap is a 38-inch, zinc-plated alloy steel mounting strap designed for secure runs of AC, MC, and FMC cables. Sold in a convenient 100-pack, it features a powder-coated finish for durability and is highly rated by professionals for quality and reliability.

Specifications

ASIN	B0044FV3J4
Brand	Sigma Engineered Solutions
Colour	Gray
Customer Reviews	4.8 out of 5 stars 845 Reviews
Finish	Powder Coated
Finish type	Powder Coated
Global Trade Identification Number	00031857111526
Included Components	Sigma Electric ProConnex 55919M One-Hole BX Strap 3/8-Inch, 100-Pack
Item Depth	1.28 inches
Item Dimensions	33 x 13 x 12 millimetres
Item Type Name	Sigma Electric ProConnex 55919M One-Hole BX Strap 3/8-Inch, 100-Pack
Item Weight	227 g
Item dimensions L x W x H	33 x 13 x 12 millimetres
Item weight	227 g
Manufacturer	Sigma Electric
Material	Alloy Steel
Model Number	55919M
Mounting Type	Wall Mount
Part Number	55321A
UPC	031857111526

Reviews

O**R

EXCELENTE

BUENA CALIDAD

25.12.2023

R**L

Garage update

Excellent bracket

3.09.2025

S**E

works

works good

23.03.2026

L**D

Quality

Excellent product

4.10.2025

A**R

Good hole hole strap for MC cable

Holds MC cable very well. No wiggle when fastened tight. Very well made, solid.

12.04.2026

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€ 120.90

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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