Tri-Groove Tamper Proof Security Nuts Zamak 5 Zinc 5/16"-18 - Qty 25

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New $55.25 (tax included) Number of stocks: 1

Used $22.10 (tax included) New Arrivals and Restocks Number in stock: 1

$33.15 cheaper than the new price!!

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New $55.25

Management number	211241692	Release Date	2026/04/04	List Price	$22.10	Model Number	211241692
Category	Industrial & Scientific Fasteners Nuts Tamper-Resistant Nuts

High quality tamper proof security nuts
Tri Groove Security Nuts are made of Zamak 5 Zinc Alloy (95% Zinc, 4% Aluminum, 1% Copper). Zamak is an alloy of Zinc and Aluminium, sometimes also incorporating Magnesium and Copper.
The added copper in Zamak 5 increases the strength, hardness, and corrosion resistance of the alloy, but reduces its ductility and dimensional accuracy compared to other Zamak Alloys.
Tri Groove nuts are also referred to as T Groove, Trident Drive and Coned Trident Drive Nuts.
May only be installed and remove using tri groove or trident drivers or sockets - Sold Separately