Slotted Countersunk Head Machine Screw

A countersunk machine screw with a flat head that sits flush in a countersunk hole. The slotted drive is tightened with a flat-blade screwdriver. Used on covers, hinges and fittings where nothing can stick out. Seat the head fully in the countersink before tightening.

In stockShips within 3 working daysMade to orderShips within 15 working days

M3 × 0.550 variantsk1.65dk5.6ISO 2009: dk = 5.5 mm
Lengthmm	b	Material	Grade	Finish		Stock	MOQpcs	≈ kg/ 1,000 pcs	Quantitypcs
5	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	0.35
	5	—	Stainless Steel	A2-70	Plain		Made to order	2,000	0.35
	5	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	0.34
	5	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	0.35
	5	—	Carbon Steel	Class 4.8	Nickel Plated		Made to order	2,000	0.34
6	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	0.39
	6	—	Stainless Steel	A2-70	Plain		Made to order	2,000	0.39
	6	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	0.39
	6	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	0.39
	6	—	Carbon Steel	Class 4.8	Nickel Plated		Made to order	2,000	0.39
8	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	0.48
	8	—	Stainless Steel	A2-70	Plain		Made to order	2,000	0.48
	8	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	0.47
	8	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	0.48
	8	—	Carbon Steel	Class 4.8	Nickel Plated		Made to order	2,000	0.47
10	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	0.57
	10	—	Stainless Steel	A2-70	Plain		Made to order	2,000	0.57
	10	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	0.56
	10	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	0.57
	10	—	Carbon Steel	Class 4.8	Nickel Plated		Made to order	2,000	0.56
12	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	0.66
	12	—	Stainless Steel	A2-70	Plain		Made to order	2,000	0.66
	12	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	0.65
	12	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	0.66
	12	—	Carbon Steel	Class 4.8	Nickel Plated		Made to order	2,000	0.65
14	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	0.75
	14	—	Stainless Steel	A2-70	Plain		Made to order	2,000	0.75
	14	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	0.74
	14	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	0.75
	14	—	Carbon Steel	Class 4.8	Nickel Plated		Made to order	2,000	0.74
16	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	0.84
	16	—	Stainless Steel	A2-70	Plain		Made to order	2,000	0.84
	16	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	0.83
	16	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	0.84
	16	—	Carbon Steel	Class 4.8	Nickel Plated		Made to order	2,000	0.83
20	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	1.01
	20	—	Stainless Steel	A2-70	Plain		Made to order	2,000	1.01
	20	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	1.00
	20	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	1.02
	20	—	Carbon Steel	Class 4.8	Nickel Plated		Made to order	2,000	1.00
25	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	1.24
	25	—	Stainless Steel	A2-70	Plain		Made to order	2,000	1.24
	25	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	1.22
	25	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	1.24
	25	—	Carbon Steel	Class 4.8	Nickel Plated		Made to order	2,000	1.22
30	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	1.46
	30	—	Stainless Steel	A2-70	Plain		Made to order	2,000	1.46
	30	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	1.44
	30	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	1.46
	30	—	Carbon Steel	Class 4.8	Nickel Plated		Made to order	2,000	1.44

M4 × 0.744 variantsk2.2dk7.5ISO 2009: k ≥ 2.7 mm, dk = 8.4 mm
Lengthmm	b	Material	Grade	Finish		Stock	MOQpcs	≈ kg/ 1,000 pcs	Quantitypcs
6	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	0.76
	6	—	Stainless Steel	A2-70	Plain		Made to order	2,000	0.76
	6	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	0.76
	6	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	0.77
8	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	0.92
	8	—	Stainless Steel	A2-70	Plain		Made to order	2,000	0.92
	8	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	0.91
	8	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	0.92
10	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	1.08
	10	—	Stainless Steel	A2-70	Plain		Made to order	2,000	1.08
	10	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	1.07
	10	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	1.08
12	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	1.23
	12	—	Stainless Steel	A2-70	Plain		Made to order	2,000	1.23
	12	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	1.22
	12	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	1.24
14	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	1.39
	14	—	Stainless Steel	A2-70	Plain		Made to order	2,000	1.39
	14	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	1.38
	14	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	1.39
16	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	1.55
	16	—	Stainless Steel	A2-70	Plain		Made to order	2,000	1.55
	16	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	1.53
	16	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	1.55
20	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	1.86
	20	—	Stainless Steel	A2-70	Plain		Made to order	2,000	1.86
	20	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	1.84
	20	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	1.86
25	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	2.25
	25	—	Stainless Steel	A2-70	Plain		Made to order	2,000	2.25
	25	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	2.23
	25	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	2.25
30	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	2.64
	30	—	Stainless Steel	A2-70	Plain		Made to order	2,000	2.64
	30	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	2.62
	30	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	2.64
35	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	3.03
	35	—	Stainless Steel	A2-70	Plain		Made to order	2,000	3.03
	35	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	3.00
	35	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	3.03
40	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	3.43
	40	—	Stainless Steel	A2-70	Plain		Made to order	2,000	3.43
	40	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	3.39
	40	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	3.42

M5 × 0.848 variantsk2.5dk9.2ISO 2009: k ≥ 2.7 mm, dk = 9.3 mm
Lengthmm	b	Material	Grade	Finish		Stock	MOQpcs	≈ kg/ 1,000 pcs	Quantitypcs
8	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	1.50
	8	—	Stainless Steel	A2-70	Plain		Made to order	2,000	1.50
	8	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	1.48
	8	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	1.50
10	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	1.75
	10	—	Stainless Steel	A2-70	Plain		Made to order	2,000	1.75
	10	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	1.73
	10	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	1.75
12	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	2.00
	12	—	Stainless Steel	A2-70	Plain		Made to order	2,000	2.00
	12	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	1.98
	12	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	2.00
14	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	2.25
	14	—	Stainless Steel	A2-70	Plain		Made to order	2,000	2.25
	14	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	2.22
	14	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	2.24
16	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	2.50
	16	—	Stainless Steel	A2-70	Plain		Made to order	2,000	2.50
	16	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	2.47
	16	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	2.49
20	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	3.00
	20	—	Stainless Steel	A2-70	Plain		Made to order	2,000	3.00
	20	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	2.97
	20	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	2.99
25	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	3.62
	25	—	Stainless Steel	A2-70	Plain		Made to order	2,000	3.62
	25	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	3.58
	25	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	3.61
30	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	4.25
	30	—	Stainless Steel	A2-70	Plain		Made to order	2,000	4.25
	30	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	4.20
	30	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	4.24
35	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	4.87
	35	—	Stainless Steel	A2-70	Plain		Made to order	2,000	4.87
	35	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	4.82
	35	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	4.86
40	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	5.50
	40	—	Stainless Steel	A2-70	Plain		Made to order	2,000	5.50
	40	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	5.44
	40	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	5.48
45	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	6.12
	45	—	Stainless Steel	A2-70	Plain		Made to order	2,000	6.12
	45	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	6.06
	45	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	6.11
50	—	Stainless Steel	A2-70	Passivated		Made to order	2,000	6.75
	50	—	Stainless Steel	A2-70	Plain		Made to order	2,000	6.75
	50	—	Carbon Steel	Class 4.8	Plain		Made to order	2,000	6.68
	50	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	2,000	6.73

M6 × 148 variantsk3dk11ISO 2009: k ≥ 3.3 mm, dk = 11.3 mm
Lengthmm	b	Material	Grade	Finish		Stock	MOQpcs	≈ kg/ 1,000 pcs	Quantitypcs
10	—	Stainless Steel	A2-70	Passivated		Made to order	1,000	2.64
	10	—	Stainless Steel	A2-70	Plain		Made to order	1,000	2.64
	10	—	Carbon Steel	Class 4.8	Plain		Made to order	1,000	2.61
	10	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	1,000	2.63
12	—	Stainless Steel	A2-70	Passivated		Made to order	1,000	2.99
	12	—	Stainless Steel	A2-70	Plain		Made to order	1,000	2.99
	12	—	Carbon Steel	Class 4.8	Plain		Made to order	1,000	2.96
	12	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	1,000	2.99
16	—	Stainless Steel	A2-70	Passivated		Made to order	1,000	3.71
	16	—	Stainless Steel	A2-70	Plain		Made to order	1,000	3.71
	16	—	Carbon Steel	Class 4.8	Plain		Made to order	1,000	3.67
	16	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	1,000	3.70
20	—	Stainless Steel	A2-70	Passivated		Made to order	1,000	4.42
	20	—	Stainless Steel	A2-70	Plain		Made to order	1,000	4.42
	20	—	Carbon Steel	Class 4.8	Plain		Made to order	1,000	4.38
	20	—	Carbon Steel	Class 4.8	Zinc Plated		Made to order	1,000	4.41
25	—	Stainless Steel	A2-70	Passivated		Made to order	1,000	5.31
25	25	—	Stainless Steel	A2-70	Plain		Made to order	1,000	5.31