Nominal Size		Screw		Dimension (mm)		304 Inventory
B (inch)	A (mm)	d1	d2	A	B
1/4B	8A	R1/4	Rc1/4	19	30	●
3/8B	10A	R3/8	Rc3/8	23	35	●
1/2B	15A	R1/2	Rc1/2	27	40	●
3/4B	20A	R3/4	Rc3/4	32	47	●
1B	25A	R1	Rc1	38	54	●
11/4B	32A	R1 1/4	Rc1 1/4	46	62	●
11/2B	40A	R1 1/2	Rc1 1/2	48	68	●
2B	50A	R2	Rc2	57	79	●