Model


BK2-VT+3	DK2-VT+5/DK2-VTI+5	FK2-VT+5

Model	A minimum value	A recommended value	A maximum value	B	C	D	E
BK2-VT+3	33	35	37	29	15	21	2.5
DK2-VT+5	52	55	59	41	22	30	4
DK2-VTI+5	2.04	2.16	2.32	1.61	0.86	1.18	0.15
FK2-VT+5	67	70	75	56	29	42	5

Model	DIN 912 Hex Socket Bolt	Clamping force (kN)	Torque (Nm)	Weight (g) (* oz)	Hardness HRC
BK2-VT+3	M8x20	25	43	70	30-34
DK2-VT+5	M12x30	55	145	235	30-34
DK2-VTI+5	1/2–1 1/4"	55	145	8.28*	30-34
FK2-VT+5	M16x40	100	360	550	30-34

The units for DDK2-VTI+5 are inches and ounces.

Model	A minimum value	A recommended value	A maximum value	G minimum	G recommended value	G maximum value	B	C	D	E
BK2-VT+3S	30	32	34	16.5	17.5	18.5	29	15	21	2.5
DK2-VT+5S	47	50	54	26	27.5	29.5	54	22	30	4
DK2-VTI+5S	1.85	1.97	2.12	1.00	1.08	1.16	1.61	0.86	1.18	0.15
FK2-VT+5S	62	65	70	33.5	35	37.5	56	29	42	5

Model	DIN 912 Hex Socket Bolt	Clamping force (kN)	Torque (Nm)	Weight (g) (* oz)	X claw hardness	Y claw hardness
BK2-VT+3S	M8x20	22	43	65	30-34	48-52
DK2-VT+5S	M12x30	55	145	210	30-34	48-52
DK2-VTI+5S	1/2–1 1/4"	55	145	7.13*	30-34	48-52
FK2-VT+5S	M16x40	100	360	500	30-34	48-52

The units for DK2-VTI+5S are inches and ounces.

Exhibition

Introduction

Baoding Fanxu Machinery Manufacturing Co., Ltd. is a specialized supplier of precision workholding systems, including vises, fixtures, and zero-point positioning solutions for high-end CNC machine tools. As both a manufacturer and a top-tier distributor of international brands such as Jergens (USA) and Schunk (Germany), we serve advanced industries including aerospace, automotive, and mold-making with high-precision, reliable products that enhance manufacturing efficiency and support industrial upgrading.