What's the size of the set screw? Is it a S1 or S2?

I believe the question you’re asking is what type of screwdriver is needed it to turn the fastener S2 or a flat head

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Sigma ProConnex TC-511 1/2" EMT Set Screw Coupling, 50-Pack

Sigma ProConnex TC-511 1/2" EMT Set Screw Coupling, 50-Pack

Product ID: 17836261

Details

Brand
Sigma
Color
Gray
Connector Type
Coupling
Exterior Finish
Zinc
Item Weight
1.7 pounds
Item dimensions L x W x H
1.33 x 0.92 x

📦50-pack contractor bulk supply

🔩Set screw design for secure grip

🛠️Zinc die-cast for durable strength

HK$499

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered 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 Hong Kong.

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Description

🔧 Connect with confidence — the pro’s choice for seamless electrical setups!

BUILT TO LAST - Premium zinc die-cast construction resists wear and corrosion for long-term durability.
BULK VALUE PACK - 50 pieces per jar means you’re always ready for any project, no last-minute runs.
CERTIFIED SAFETY - UL and CSA listings guarantee compliance with top industry safety standards.
EFFORTLESS INSTALLATION - Tri-combo set screws ensure quick, reliable connections every time.
CONCRETE TIGHT ASSURANCE - Approved for concrete-tight applications when taped, perfect for demanding job sites.

The SIGMA ENGINEERED SOLUTIONS ProConnex TC-511 EMT Set Screw Coupling 1/2" 50-Pack offers a contractor-ready bulk supply of durable, zinc die-cast couplings designed for secure, concrete-tight connections in dry locations. Featuring tri-combo set screws for easy installation and backed by UL and CSA safety certifications, this coupling set ensures reliable, long-lasting performance for professional electrical conduit installations.

Specifications

ASIN	B006VXC3WS
Best Sellers Rank	#357,114 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #643 in Electrical Conduit Fittings
Brand Name	Sigma Engineered Solutions
Color	Gray
Connector Type	Coupling
Customer Reviews	4.6 4.6 out of 5 stars (123)
Exterior Finish	Zinc
Global Trade Identification Number	00031857652401
Item Dimensions	1.33 x 0.92 x 1.05 inches
Item Type Name	HOSE_PIPE_FITTING
Item Weight	1.7 pounds
Manufacturer	Sigma Engineereed Solutions
Manufacturer Part Number	TC-511
Manufacturer Warranty Description	Warranty
Material Type	Die Cast Zinc
Model Number	TC-511
Number of Pieces	50
Set Name	50-Pack
Size	No Size
Thread Size	['1/2 inch']
Thread Type	NPT
UPC	031857652401
Unit Count	50 Count

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TrustScore 4.5 | 7,300+ reviews

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HK$499

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered 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 Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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