Ultra-Fine Adjustment Screws are compact and provide extremely high resolution. Special design provides smooth and repeatable action by mating a high precision 0.25 pitch stainless steel screw with a high precision brass collar. The screws have either a hardened steel ball on the tip or a blunt ground tip. The mounting surface of collars is either plain cylindrical or with a thread. The collars are ideally suitable for all mechanical stages and elements from Altechna or other companies. The handy dimensions of the knobs are optimally chosen to feel rotation as little as 0.5-1. This enables to achieve 0.5 m positioning sensitivity. The knobs are made of hard aluminium and come in various colours: black, white, red, green, yellow, blue, etc. By default the knobs are in black or white colour, 5 mm high (dimension "K"). Weight 0.01 to 0.02 kg. Knobs may be 5mm (standard), 10 mm or 15 mm high. When ordering, please indicate in the order if you wish to have not standard 10 mm or 15 mm high knobs. For screws with hexagonal hole (instead of the knob) see item 9SH127.

	Stainless steel screw with pitch of 0.25 mm
	Pitch of 0.125 mm on request
	Precision brass collars of 3 types
	Tolerances better than tightest industry standards.

Models

Model	Travel, mm	L,mm	Tip	Collar
9S127-10	10	25	ball	Ø8.7
9S127-25	25	40	ball	Ø8.7
9S127-7	7	22	ball	Ø8.7
9S127B-10	10	22	blunt	Ø8.7
9S127B-25	35	37	blunt	8,7
9S127B-7	7	19	blunt	8,7
9S127BM-10	10	22	blunt	M10x1
9S127BM-25	25	37	blunt	M10x1
9S127BM-7	7	19	blunt	M10x1
9S127BN-10	10	30	blunt	9,5
9S127BN-25	35	45	blunt	9,5
9S127BN-5	5	25	blunt	Ø9.5
9S127M-10	10	23	ball	M10x1
9S127M-25	25	38	ball	M10x1
9S127M-7	7	20	ball	M10x1
9S127N-10	10	33	ball	9.5
9S127N-25	25	48	ball	9,5
9S127N-5	5	28	ball	9,5