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Cross Recessed Pan Head Tapping Screws

GB /T 845 - 2017

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^*Models with different eras.

Thread Size
d

ST2.2

ST2.9

ST3.5

ST4.2

ST4.8

ST5.5

ST6.3

ST8

ST9.5

P	Pitch
a	max
d_k	max
	min
k	max
	min
Socket No.
M₁	Type H	Ref.
Penetration depth	Type H	max
		min
M₂	Type Z	Ref.
Penetration depth	Type Z	max
		min
y	Ref.	Type C
		Type F
		Type R

0.8	1.1	1.3	1.4	1.6	1.8	1.8	2.1	2.1
0.8	1.1	1.3	1.4	1.6	1.8	1.8	2.1	2.1
4	5.6	7	8	9.5	11	12	16	20
3.7	5.3	6.64	7.64	9.14	10.57	11.57	15.57	19.48
1.6	2.4	2.6	3.1	3.7	4	4.6	6	7.5
1.4	2.15	2.35	2.8	3.4	3.7	4.3	5.6	7.1
0	1	2	2	2	3	3	4	4
1.9	3	3.9	4.4	4.9	6.4	6.9	9	10.1
1.2	1.8	1.9	2.4	2.9	3.1	3.6	4.7	5.8
0.85	1.4	1.4	1.9	2.4	2.6	3.1	4.15	5.2
2	3	4	4.4	4.8	6.2	6.8	8.9	10.1
1.2	1.75	1.9	2.35	2.75	3	3.5	4.5	5.7
0.95	1.45	1.5	1.95	2.3	2.55	3.05	4.05	5.25
2	2.6	3.2	3.7	4.3	5	6	7.5	8
1.6	2.1	2.5	2.8	3.2	3.6	3.6	4.2	4.2
-	-	2.7	3.2	3.6	4.3	5	6.3	-

Alternative history

GB 845 - 1976 GB /T 845 - 1985 GB /T 845 - 2017

Suppliers

Best price if from GlobalFastener.com.

Shanghai Chengtai Hardware Manufacturing Co., Ltd.

Mr.Zhuge
+86-18916049888
+86-21-59742477/59740118

Material: stainless steel; Specification: complete; Surface treatment: according to customer requirement

Suzhou Yongchuang Fastener Factory

Mr. Tang
+86-15298892886
+86-512-66700967

Material: stainless steel, carbon steel; Nominal diameter: M1-M14; Nominal length: 5-400mm

Suzhou Hanlinyu Precision Hardware Co., Ltd.

Amy Li
+86-13771867939
+86-512-65868465

Material: Carbon steel, Stainless steel; Grade: 8.8; Specifications: ST2.2-ST9.5

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Similar Standards

1	[ISO] ISO 7049 - 1983	Cross Recessed Pan Head Tapping Screws View Suppliers
2	[DIN] DIN 7981 - 1990	Cross Recessed Pan Head Tapping Screws View Suppliers
3	[ISO] ISO 7049 - 2011	Cross Recessed Pan Head Tapping Screws View Suppliers
4	[DIN EN ISO] DIN EN ISO 7049 - 2011	Cross-recessed Pan Head Tapping Screws View Suppliers
5	[GB] GB /T 845 - 1985	Cross Recessed Pan Head Tapping Screws View Suppliers
6	[GB] GB 845 - 1976	Cross Recessed Pan Head Self-tapping Screws View Suppliers
7	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Fillister Head Tapping Screws - Type AB Thread Forming [Table 38]
8	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Fillister Head Tapping Screws - Type C Thread Forming [Table 36]
9	[ASME/ANSI] ASME/ANSI B 18.6.3 - 2010	Machine Screw and Tapping Screw Nuts (Inch Seires)
10	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Truss Head Tapping Screws - Type B and BP Thread Forming [Table F2]
11	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Round Head Tapping Screws - Type A Thread Forming [Table G2]
12	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Pan Head Tapping Screws - Type B and BP Thread Forming [Table 34]
13	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Fillister Head Tapping Screws - Type C Thread Forming [Table 37]
14	[ASME] ASME B 18.6.3 (H7B-I/H7B-IA+T1A) - 2024	Cross Recessed Mushroom Head Tapping Screws - Type AB and ABR
15	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Fillister Head Tapping Screws - Type A Thread Forming [Table 38]
16	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Round Head Tapping Screws - Type A Thread Forming [Table G3]
17	[ASME/ANSI] ASME/ANSI B 18.6.3 - 2010	Machine Screw and Tapping Screw Nuts (Inch Seires)
18	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Truss Head Tapping Screws - Type AB Thread Forming [Table F2]
19	[DIN] DIN 968 - 1994	Cross Recessed Pan Head Tapping Screws with Collar
20	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Pan Head Tapping Screws - Type AB Thread Forming [Table 32]
21	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Fillister Head Tapping Screws - Type AB Thread Forming [Table 37]
22	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Truss Head Tapping Screws - Type AB Thread Forming [Table F4]
23	[ASME] ASME B 18.6.3 (H12B-I+T1A) - 2024	Cross Recessed Round Head Tapping Screws with Collar - Type AB and ABR
24	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Pan Head Tapping Screws - Type A Thread Forming [Table 33]
25	[ASME] ASME B 18.6.3 (H6B-I/H6B-IA+T1A) - 2024	Cross Recessed Raised Cheese Head Tapping Screws - Type AB and ABR
26	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Truss Head Tapping Screws - Type C Thread Forming [Table F4]
27	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Pan Head Tapping Screws - Type B and BP Thread Forming [Table 32]
28	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Truss Head Tapping Screws - Type A Thread Forming [Table F4]
29	[ASME] ASME B 18.6.5M (T18) - 2000 (R2010)	Metric Type IA Cross-Recessed Pan Head Tapping Screws [Table 18]
30	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Round Head Tapping Screws - Type C Thread Forming [Table G3]
31	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Round Head Tapping Screws - Type C Thread Forming [Table G2]
32	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Truss Head Tapping Screws - Type B and BP Thread Forming [Table F4]
33	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Pan Head Tapping Screws - Type C Thread Forming [Table 32]
34	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Fillister Head Tapping Screws - Type B and BP Thread Forming [Table 36]
35	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Fillister Head Tapping Screws - Type A Thread Forming [Table 36]
36	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Truss Head Tapping Screws - Type AB Thread Forming [Table F3]
37	[ASME] ASME B 18.6.3 (T39-I+T40) - 2013	Cross Recessed Round Head Tapping Screws with Collar - Type AB and ABR
38	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Pan Head Tapping Screws - Type A Thread Forming [Table 34]
39	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Pan Head Tapping Screws - Type AB Thread Forming [Table 34]
40	[DIN] DIN 968 - 2002	Cross Recessed Pan Head Tapping Screws with Collar
41	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Fillister Head Tapping Screws - Type B and BP Thread Forming [Table 37]
42	[ASME] ASME B 18.6.3 (T36-I/T36-IA+T40) - 2013	Cross Recessed Round Head Tapping Screws - Type AB and ABR
43	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Truss Head Tapping Screws - Type A Thread Forming [Table F3]
44	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Round Head Tapping Screws - Type B and BP Thread Forming [Table G3]
45	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Fillister Head Tapping Screws - Type C Thread Forming [Table 38]
46	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Pan Head Tapping Screws - Type B and BP Thread Forming [Table 33]
47	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Fillister Head Tapping Screws - Type A Thread Forming [Table 37]
48	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Pan Head Tapping Screws - Type AB Thread Forming [Table 33]
49	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Truss Head Tapping Screws - Type B and BP Thread Forming [Table F3]
50	[ASME] ASME B 18.6.3 (T18-I/T19-IA+T40) - 2013	Type I Cross Recessed Pan Head Tapping Screws - Type AB and ABR
51	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Truss Head Tapping Screws - Type C Thread Forming [Table F2]
52	[ASME] ASME B 18.6.3 (H11B-I/H11B-IA+T1A) - 2024	Cross Recessed Round Head Tapping Screws - Type AB and ABR
53	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Fillister Head Tapping Screws - Type B and BP Thread Forming [Table 38]
54	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Pan Head Tapping Screws - Type C Thread Forming [Table 33]
55	[ASME] ASME B 18.6.3 (T25-I/T25-IA+T40) - 2013	Cross Recessed Mushroom Head Tapping Screws - Type AB and ABR
56	[ASME] ASME B 18.6.3 (H5B-I/H5C-IA+T1A) - 2024	Type I Cross Recessed Pan Head Tapping Screws - Type AB and ABR
57	[DIN] DIN 968 - 2008	Cross Recessed Pan Head Tapping Screws with Collar
58	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Truss Head Tapping Screws - Type A Thread Forming [Table F2]
59	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Pan Head Tapping Screws - Type A Thread Forming [Table 32]
60	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Round Head Tapping Screws - Type B and BP Thread Forming [Table G2]
61	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type IA Cross Recessed Truss Head Tapping Screws - Type C Thread Forming [Table F3]
62	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type I Cross Recessed Fillister Head Tapping Screws - Type AB Thread Forming [Table 36]
63	[ASME] ASME B 18.6.3 (T22-I/T22-IA+T40) - 2013	Cross Recessed Raised Cheese Head Tapping Screws - Type AB and ABR
64	[ASME] ASME B 18.6.5M (T17) - 2000 (R2010)	Metric Cross Recessed Pan Head Tapping Screws [Table 17]
65	[ASME] ASME B 18.6.4 - 1998 (R2005)	Type II Cross Recessed Pan Head Tapping Screws - Type C Thread Forming [Table 34]
66	[JIS] JIS B 1122 (JA7) - 2015	Cross Recessed Cheese Head Tapping Screws - Threaded Portion are of Class 1 to 4
67	[JIS] JIS B 1122 (JA8) - 2015	Cross Recessed Brazier Head Tapping Screws - Threaded Portion are of Class 1 to 4
68	[JIS] JIS B 1122 (JA3) - 2015	Cross Recessed Pan Head Tapping Screws - Threaded Portion are of Class 1 to 4
69	[BS] BS 4174 - 1972	Corss Recessed Flange Head Self-Tapping Screws [Table 19]
70	[UNI] UNI 10227 - 1993	Recessed Raised Cheese (fillister) Thread Forming Screws for Plastic Materials (Metric Series）
71	[JIS] JIS B 1122 (AAT6) - 1996	Cross Recessed Brazier Head Tapping Screws - Threaded Portion are of Class 1 to 4 [Annex Attached Table 6]
72	[JIS] JIS B 1122 (AT1) - 1996	Cross Recessed Pan Head Tapping Screws [Table 1]
73	[BS] BS 4174 - 1972	Cross Recess Pan Head Self-tapping Screws [Table 17]
74	[JIS] JIS B 1122 (AAT5) - 1996	Cross Recessed Cheese Head Tapping Screws - Threaded Portion are of Class 1 to 4 [Annex Attached Table 5]
75	[JIS] JIS B 1122 (AAT1) - 1996	Cross Recessed Pan Head Tapping Screws - Threaded Portion are of Class 1 to 4 [Annex Attached Table 1]
76	[NF] NF E 25-658 - 1994	Cross Recessed Pan Head Tapping Screws
77	[JIS] JIS B 1122 (T3) - 2015	Cross Recessed Pan Head Tapping Screws
78	[JIS] JIS B 1122 (AAT4) - 1996	Cross Recessed Truss Head Tapping Screws - Threaded Portion are of Class 1 to 4 [Annex Attached Table 4]
79	[NF] NF E 25-659 - 1984	Cross Recessed Pan Head Tapping Screws with Collar - Type C and F
80	[JIS] JIS B 1122 (JA6) - 2015	Cross Recessed Truss Head Tapping Screws - Threaded Portion are of Class 1 to 4
81	[UNI] UNI 6954	Cross Recessed Pan Head Tapping Screws
82	[YJT] YJT 4024	Round Washer Head with Type H or Type Z Cross Recess Self-tapping Screw [PT]
83	[YJT] YJT 4054	Cross Recessed Pan Head Tapping Screws with Collar [PT]
84	[YJT] YJT 4055	Cross Recessed Pan Head Tapping Screws with Collar [PT]
85	[AS] AS /NZS 4406 - 1996	ISO Metric Cross Recessed Pan Head Tapping Screws
86	[CNS] CNS 4305 - 2000	Cross Recessed Pan Head Tapping Screws
87	[KS] KS B 1032 - 2016 (R2021)	Cross Recessed Pan Head Tapping Screws
88	[KS] KS B 1032 - 2001	Cross Recessed Pan Head Tapping Screws
89	[YJT] YJT 4056	Cross Recessed Pan Head Tapping Screws [PT]
90	[YJT] YJT 4057	Cross Recessed Pan Head Tapping Screws [PT]