产品名称:内六角平端紧定螺钉
执行标准:德标DIN913-1980
产品概述:DIN913内六角平端紧定螺钉是德国工业标准(Deutsches Institut für Normung) 中对内六角平端无头紧定螺钉的专属编号,该标准等效对应国际标准 ISO 4026,国内可参考国标 GB/T 77-2000。这类螺钉属于 “无头、内六角” 的紧固连接件,核心作用是通过螺纹旋入基体,利用端部平面顶紧被连接件,实现定位、防松或传递小扭矩的功能。其结构的优势点:1、无头内六角驱动结构 无外露头部,拧紧后可与基体表面齐平或沉入,不影响被连接件的运动(如转轴、滑块),适合紧凑空间装配。内六角驱动形式相比一字、十字槽,能承受更大拧紧扭矩,且不易滑角,安装拆卸更稳定,适配自动化装配工具(如电动内六角扳手).2、平端头部设计端部为平整圆形平面,与被顶紧面接触面积大,可有效分散压力,避免划伤工件表面(尤其适合铝合金、铜等软质材料工件)。平端无尖锐结构,顶紧时不会嵌入被连接件,拆卸后工件表面无明显压痕,适合需要重复拆装的场景。3、全螺纹构造DIN913 为全螺纹设计,螺纹长度与螺钉公称长度一致,旋入基体后螺纹啮合长度长,连接稳定性更强。
产品材料:SUS304、SUS316、SUS316L、410等不锈钢特殊材料、碳钢(1008、1022、10B21、35K、45K),合金钢(10B33、40Cr、SCM435)、B7、B7M、A320 L7/L7M等
产品等级:A2-50、A2-70、A4-70、A4-80、B8、8.8级、10.9级、12.9级等产品性能符合碳钢ISO898-5与不锈钢DIN267-11
产品表面:发黑、蓝白锌、彩锌、黑锌、锌镍合金、久美特、达克罗、电泳、特氟龙、烤漆、涂防松胶等客户指定表面处理
产品直径:M1.6、M2、M2.5、M3、M4、M5、M6、M8、M10、M12、M16、M18、M20、M24等螺纹直径
产品长度:螺丝长度有 2mm、2.5mm、3mm、4mm、5mm、6mm、8mm、10mm、12mm、16mm、18mm、20mm、25mm、30mm、35mm、40mm、45mm、50mm、60mm,长度可供选择与定制
产品图片


产品尺寸

| 螺纹规格 d | M1.4 | M1.6 | (M1.8) | M2 | M2.5 | M3 | M4 | M5 | M6 | ||
| P | 螺距 | 0.3 | 0.35 | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | |
| dp | 最大值 | 0.7 | 0.8 | 0.9 | 1 | 1.5 | 2 | 2.5 | 3.5 | 4 | |
| 最小值 | 0.45 | 0.55 | 0.65 | 0.75 | 1.25 | 1.75 | 2.25 | 3.2 | 3.7 | ||
| e | 最小值 | 0.803 | 0.803 | 0.803 | 1.003 | 1.427 | 1.73 | 2.3 | 2.87 | 3.44 | |
| s | 公称 | 0.7 | 0.7 | 0.7 | 0.9 | 1.3 | 1.5 | 2 | 2.5 | 3 | |
| 最大值 | 0.724 | 0.724 | 0.724 | 0.902 | 1.295 | 1.545 | 2.045 | 2.56 | 3.08 | ||
| 最小值 | 0.711 | 0.711 | 0.711 | 0.889 | 1.27 | 1.52 | 2.02 | 2.52 | 3.02 | ||
| t | 最小值 | 短螺钉 | 0.6 | 0.7 | 0.8 | 0.8 | 1.2 | 1.2 | 1.5 | 2 | 2 |
| 长螺钉 | 1.4 | 1.5 | 1.6 | 1.7 | 2 | 2 | 2.5 | 3 | 3.5 | ||
| 螺纹规格 d | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | M24 | ||
| P | 螺距 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | |
| dp | 最大值 | 5.5 | 7 | 8.5 | 10 | 12 | 13 | 15 | 17 | 18 | |
| 最小值 | 5.2 | 6.64 | 8.14 | 9.64 | 11.57 | 12.57 | 14.57 | 16.57 | 17.57 | ||
| e | 最小值 | 4.58 | 5.72 | 6.86 | 6.86 | 9.15 | 11.43 | 11.43 | 13.72 | 13.72 | |
| s | 公称 | 4 | 5 | 6 | 6 | 8 | 10 | 10 | 12 | 12 | |
| 最大值 | 4.095 | 5.095 | 6.095 | 6.095 | 8.115 | 10.115 | 10.115 | 12.142 | 12.142 | ||
| 最小值 | 4.02 | 5.02 | 6.02 | 6.02 | 8.025 | 10.025 | 10.025 | 12.032 | 12.032 | ||
| t | 最小值 | 短螺钉 | 3 | 4 | 4.8 | 5.6 | 6.4 | 7.2 | 8 | 9 | 10 |
| 长螺钉 | 5 | 6 | 8 | 9 | 10 | 11 | 12 | 13.5 | 15 | ||
螺钉性能与其他参考标准
| Material | Steel | Stainless Steel | Non-ferrous Metal | |
| General Requirements | in accordance with DIN 267 Part 1 | |||
| Thread | Tolerance | 5g 6g for strength class 45H; 6g for all other strength classes and materials | ||
| Standard | Part 12 and Part 15 | |||
| Mechanical Properties | Strength Class | 45H | Up to M 20: A2-70, A4, C3; over M 20: A2-50 | ……²) |
| Standard | DIN ISO 898 Part5 | DIN267 Part11 1) | DIN267 Part18 | |
| Allowable Dimensional and Form deviations | Product class | A 3) | ||
| Standard | DIN ISO 4759 Part1 | |||
| Surface | blackened (thermal or chemical) | plain | plain | |
| DIN 267 Part 2 (April 1968 edition), Section 2.1 shall apply to the surface roughness depths.Requirements for electrolytic surface protection shall comply with DIN 267 Part 9. | ||||
| Acceptance inspection | DIN 267 Part 5 shall apply to the acceptance inspection. | |||
| ISO 3506 is cited in ISO 4026. This standard is included in DIN 267 Part 11. DIN 267 Part 18 contains a selection of non-ferrous metals (light and heavy metals) for fasteners. It was first published in 1980. A material selection for threaded pins has not yet been determined. See Section 2 | ||||
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