S350 Extension Nut

Name: S350 Extension Nut
Brand: SPD Italy

S350 Extension Nut – Professional Solution for Extending Connections

The S350 extension nut from SPD Italy is designed for extending industrial connections and clamping setups – to join two threaded studs or to raise the clamping point. The nut is made of tempered free-machining steel (Automatic Alloy Steel) and provides high strength, maximum precision and excellent durability under long-term loads. Available in 15 sizes, from M6 to M48.

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Key Advantages:

Exceptionally high mechanical strength
Nut length is 3 times the thread diameter – full thread along the entire length
Suitable for joining and extending S321 threaded studs and T-bolts
Inspection certificate 2.2 available on request
Made by SPD Italy – meticulous quality

Technical Specifications:

Product model: S350
Material: Tempered free-machining steel (Automatic Alloy Steel)
Type: Hex extension nut (Extension / Coupling Nut)
Manufacturer: SPD Italy

Technical Drawing:

Dimensions Table (mm):

Model	M (Thread)	S (Wrench size)	E	H	Weight (g)
S350.06018	M6	10	11.5	18	8
S350.08024	M8	13	14.8	24	19
S350.10030	M10	17	19.6	30	42
S350.12036	M12	19	21.5	36	64
S350.14042	M14	22	25	42	95
S350.16048	M16	24	27.5	48	120
S350.18054	M18	27	31	54	170
S350.20060	M20	30	34.6	60	240
S350.22066	M22	32	36.9	66	280
S350.24072	M24	36	41.6	72	400
S350.27081	M27	41	47.3	81	600
S350.30090	M30	46	53.1	90	850
S350.36108	M36	55	63.5	108	1470
S350.42126	M42	65	75	126	2340
S350.48144	M48	75	86.5	144	3600

Legend: M – thread diameter, S – wrench size (across flats), E – diameter across corners, H – nut length. Additional sizes available on request.

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