[M12 14MM COMPATIBILITY] Designed with M12 studs and matching T nuts to suit machine tables with 14mm T slots. Please confirm your slot size and thread before purchase to ensure proper fit and secure clamping. [HEAT TREATED STEEL] Each component is heat treated and finished with black oxide to deliver dependable strength during machining. The durable surface helps resist wear in frequent workshop and factory use. [58PCS COMPLETE KIT] Includes 24 double end studs in 6 lengths from 75 to 200mm plus 6 T slot nuts 6 flange nuts 4 connection nuts 6 stepped press plates and 12 step blocks for versatile setups. [WIDE MACHINE APPLICATION] Ideal for holding workpieces molds jigs fixtures and plates on lathes CNC machines milling machines and other metal cutting equipment. Suitable for parallel square and regular clamping tasks. [STORAGE BOX INCLUDED] Supplied with a storage box and bracket style arrangement to keep studs nuts step blocks and press plates organized. Helps reduce setup time improve efficiency and simplify transport between jobs.