BS 4278:1984 Specification for Eyebolts for lifting purposes (Full)
5 thg 10, 2026 | 15:33

BS 4278:1984 Specification for Eyebolts for lifting purposes (Full)

 



BS 4278:1984 Quy định kỹ thuật đối với bu lông dùng để nâng hạ


Abstract


Covers collar eyebolts, eyebolts with link and dynamo eyebolts. Also deals with material, form, dimensions, screw threads, workmanship, hardness, proof loading, marking and certificate.


Document History


Superseded by BS EN ISO 3266:2010. Supersedes BS 4278:1968. Previously steel eyebolts were covered in BS 529-1 and BS 529-2 (withdrawn). Eyebolts without collars for lift suspension purposes are specified in BS 5655-8 which replaced BS 529-2.


Contents


Page

Committees responsible Inside front cover

Foreword ii

1 Scope 1

2 Material 1

3 Form and dimensions 1

4 Screw threads 1

5 Workmanship 1

6 Tolerances 1

7 Heat treatment 2

8 Hardness test 2

9 Proof loading 2

10 Marking 2

11 Certificate of test 2

Appendix A Dimensions of eyebolts with imperial threads 8

Appendix B Recommendations for the selection, care and use 

of eyebolts 10

Figure 1 — Collar eyebolt 3

Figure 2 — Eyebolt with link 5

Figure 3 — Dynamo eyebolt 6

Figure 4 — Correct method of fitting pairs of collar eyebolts 

and eyebolts with link 13

Figure 5 — Incorrect method of fitting pairs of collar eyebolts 

and eyebolts with link 13

Figure 6 — Trunnion lifting 14

Table 1 — Collar eyebolt 4

Table 2 — Eyebolt with link 6

Table 3 — Dynamo eyebolt 7

Table 4 — Collar eyebolt (imperial threads) 8

Table 5 — Eyebolt with link (imperial threads) 9

Table 6 — Dynamo eyebolt (imperial threads) 9

Table 7 — Maximum recommended working loads for collar 

eyebolts (metric threads) when used in pairs for inclined 

loading conditions 11

Table 8 — Maximum recommended working loads for eyebolts 

with link (imperial and metric threads) when used in pairs for 

inclined loading conditions 12

Table 9 — Maximum recommended working loads for collar 

eyebolts (imperial threads) when used in pairs for inclined loading 

conditions 12

Publications referred to









LINK DOWNLOAD (VIP)

 



BS 4278:1984 Quy định kỹ thuật đối với bu lông dùng để nâng hạ


Abstract


Covers collar eyebolts, eyebolts with link and dynamo eyebolts. Also deals with material, form, dimensions, screw threads, workmanship, hardness, proof loading, marking and certificate.


Document History


Superseded by BS EN ISO 3266:2010. Supersedes BS 4278:1968. Previously steel eyebolts were covered in BS 529-1 and BS 529-2 (withdrawn). Eyebolts without collars for lift suspension purposes are specified in BS 5655-8 which replaced BS 529-2.


Contents


Page

Committees responsible Inside front cover

Foreword ii

1 Scope 1

2 Material 1

3 Form and dimensions 1

4 Screw threads 1

5 Workmanship 1

6 Tolerances 1

7 Heat treatment 2

8 Hardness test 2

9 Proof loading 2

10 Marking 2

11 Certificate of test 2

Appendix A Dimensions of eyebolts with imperial threads 8

Appendix B Recommendations for the selection, care and use 

of eyebolts 10

Figure 1 — Collar eyebolt 3

Figure 2 — Eyebolt with link 5

Figure 3 — Dynamo eyebolt 6

Figure 4 — Correct method of fitting pairs of collar eyebolts 

and eyebolts with link 13

Figure 5 — Incorrect method of fitting pairs of collar eyebolts 

and eyebolts with link 13

Figure 6 — Trunnion lifting 14

Table 1 — Collar eyebolt 4

Table 2 — Eyebolt with link 6

Table 3 — Dynamo eyebolt 7

Table 4 — Collar eyebolt (imperial threads) 8

Table 5 — Eyebolt with link (imperial threads) 9

Table 6 — Dynamo eyebolt (imperial threads) 9

Table 7 — Maximum recommended working loads for collar 

eyebolts (metric threads) when used in pairs for inclined 

loading conditions 11

Table 8 — Maximum recommended working loads for eyebolts 

with link (imperial and metric threads) when used in pairs for 

inclined loading conditions 12

Table 9 — Maximum recommended working loads for collar 

eyebolts (imperial threads) when used in pairs for inclined loading 

conditions 12

Publications referred to









LINK DOWNLOAD (VIP)




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